Feasibility and preliminary efficacy of a school-based health and well-being program for adolescent girls
Pilot and Feasibility Studies volume 8, Article number: 15 (2022)
The primary aim of this pilot study was to evaluate the feasibility and preliminary efficacy of a school-based health and well-being program (Health and Well-being for Girls: HWBG) on adolescent girls’ well-being, mindfulness, screen-time, and physical activity.
The HWBG program was evaluated using a group randomized controlled trial (RCT) in one secondary school. A convenience sample of female students in Grade 8 (mean age 14 ± 0.5 years) was recruited for the study (n=4 classes; 89 girls). The 20-week multi-component HWBG program, guided by Self-Determination Theory and Acceptance and Commitment Therapy, was designed and delivered by a member of the research team. Randomization occurred prior to baseline assessments at the class level (n=4 classes) into dose-matched treatment conditions (i.e., two classes received the HWBG intervention and two classes received an alternate elective course as a wait-list control group). Process evaluation measures of recruitment, retention, adherence, and satisfaction were used to determine program feasibility. This study was designed to assess feasibility (primary outcome) and preliminary efficacy (secondary outcomes), rather than effectiveness. Preliminary efficacy of HWBG for improving mental and social health, screen-time, and physical activity were measured and analyzed using linear mixed-models.
“The health and well-being program” targeting adolescent girls was found to be feasible for implementation as an elective course in a secondary school setting. Participants in the HWBG program reported high levels of satisfaction, the majority of lessons (45 out of 50), were implemented as planned and adherence to the planned HWBG program content was very high. Medium positive effects on mental health (d=0.45) and social health (d=0.50) were observed. Small effects were observed for physical activity, and no significant intervention effects were found for levels of recreational screen time. Participant ratings showed high levels of perceived benefit and enjoyment as indicated in the evaluation data (mean rating of 4.44 out of a possible 5.0) when asked whether the program was enjoyable.
The study provides preliminary support for HWBG as a potentially feasible and enjoyable program suitable for use with adolescent girls in the secondary school setting. Potential of the study for facilitating improvements in pro-social and psychological well-being is also supported.
ACTRN12617000157370. The trial was registered with the Australian New Zealand Clinical Trials Registry.
Key messages regarding feasibility
What uncertainties existed regarding the feasibility?
The Health and Well-being for Girls (HWBG) program was a feasible approach when delivered by a member of the research team in one secondary school. However, the feasibility of a “train the teacher model” is yet to be determined. Additional mindfulness training for teachers of HWBG may be required to ensure equally successful outcomes.
What are the key feasibility findings?
A health and well-being program targeting adolescent girls is feasible for implementation as an elective course in one secondary school setting. Participants in the HWBG program reported high levels of satisfaction. All lessons were implemented as planned, and adherence to the HWBG program content was very high when delivered as a curriculum program.
What are the implications of the feasibility findings for the design of the main study?
Findings from the study will be used to refine HWBG before progressing to a cluster FRCT involving multiple schools. Implications about the feasibility of such a high dose (e.g., full elective—5 h per fortnight) or modification to make the program available for all girls in a different format.
Data suggest that approximately 20% of adolescents worldwide have a diagnosed mental health illness [30, 106]. These rates are considered an underrepresentation, as many health disorders in adolescents go unreported, and treatment options are not accessed by up to two thirds of young people with depression and anxiety [3, 106]. Levels of stress, anxiety, bullying, body image concerns, insomnia, and depression are increasing among adolescents globally . In Australia, over 40% of respondents in The Mission Australia Youth Survey report (2017) indicated that they were either extremely concerned or very concerned about coping with stress, and 20% of respondents reported being either extremely concerned or very concerned about depression . Of particular concern is the recent rise in levels of mental health difficulties in adolescent girls .
The World Health Organization defines mental health as “a state of well-being in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community” (, p. 231). Mental health includes both positive and negative indicators , with research demonstrating that adolescent girls fare much worse than adolescent boys in measures of self-concept, life satisfaction, negative feelings, and self-harming [32, 43]. From 2012 to 2015, there was a 50% increase in the reporting of depressive symptoms and self-harm in Australian adolescent girls, with total rates of depression and self-harm almost double those of their male peers . Even though suicide rates have increased for both sexes, rates have increased threefold for girls aged 12–14 years since 2007. By comparison, the rates for boys of the same age have doubled [35, 95].
The causes of mental health disorders in youth are complex, but research supports that satisfying the need for interpersonal relationships are essential for good mental and physical health . High levels of loneliness are reported among adolescents, with one in four young people disclosing “problematic” levels of loneliness . Each year a rising number of Australian children contact children’s support services about feelings of isolation and loneliness, with the latest figures demonstrating that support services delivered 4636 counseling sessions for loneliness in 2017/2018 . Links between loneliness and a broad range of mental health difficulties (e.g., suicidal ideation, anxiety, depression, substance misuse, and self-injury) [46, 61, 90] are also well supported. Evidence of effective interventions addressing levels of loneliness in adolescents are limited, but strategies focusing on the promotion of good social health and social connectedness may offer a level of protection for young people from loneliness ([22, 58].
“Positive Education” has emerged as a potential model to promote adolescents’ well-being  and has increased in popularity over the last decade . Positive education brings together positive psychology science with best practice teaching, in order to support and encourage individuals to flourish within their communities . Positive education has been referred to as a traditional model of education focused on the development of academic skill, complemented by approaches that promote good mental health and nurture well-being . For example, positive education focuses on building specific skills that support students to build positive emotions, strengthen relationships, encourage a healthy lifestyle, promote mindfulness, and enhance personal resilience; underpinned by a focus on character strengths . Review level evidence demonstrates that positive psychology interventions have had a positive impact on levels of student well-being and academic performance .
A crucial component of positive education and good mental health is connectedness , which is conceptualized as a sense of belonging, perceived sense of care and support, a sense of perceived closeness to a group or individual, and comfort in discussing problems with others . Furthermore, school connectedness (the levels to which an adolescent feels accepted, respected, valued, and included in school) is an established protective factor for adolescent health, social well-being, and education . Increased optimism, improved academic performance, resilience, and health promoting behaviors (such as nutrition and physical activity), along with lower levels of depression and problem behavior, are also related to higher individual levels of school connectedness [4, 13, 18, 80, 103]. The goals of positive psychology are supported in shifting from a focus on psychopathology to a greater consideration of positive functioning and identification of individual strengths .
Adverse mental and physical health outcomes are associated with excessive recreational screen-time (i.e., screen use for entertainment), and this is a global public health issue. Systematic reviews and meta-analyses provide evidence for a negative association between internalizing symptoms (e.g., depression and anxiety) and recreational screen-time in youth [47, 59, 108]. This is particularly strong for adolescent girls with research citing body image, online bullying, harassment, and self-esteem issues as mechanisms linking recreational screen-time to poor mental health [55, 95]. It is argued that the increase in social media use, of which adolescent girls are the primary users, has coincided with the spike observed in the rates of anxiety and depression in this age group [40, 55, 89]. Although reducing screen-time has been identified as a potential strategy to improve adolescents’ psychosocial health , findings from experimental studies have been mixed . Studies conducted among adolescents in the USA indicate that girls aged 13–18 years are more likely than their male peers to struggle with depressive symptoms and suicide-related tendencies in relation to time spent on screen media and devices . Conversely, the US adolescents engaging in activities devoid of devices such as exercise/sports, in person social interaction, homework, and print media were less likely to report these mental health issues ().
Physical activity is another lifestyle behavior that is positively associated with mental health in adolescents . However, given that only 18% of Australian adolescents (12–17 years) participate in the daily recommendation of 60 min of moderate to vigorous physical activity  and spend over 2 h a day (136 min) engaged in screen-based activity, most young people spend more time on screens than they do moving . There is strong evidence that regular physical activity can improve physiological outcomes and health-related fitness in children and adolescents . Evidence also supports that physical activity can improve adolescents’ mental health [7, 11, 12] via a range of neurobiological, psychosocial, and behavioral mechanisms .
In comparison to those that are active, inactive adolescents demonstrate reduced levels of well-being and increased levels of internalizing problems (e.g., anxiety and depression) . Adolescent females are less active than adolescent males , and interventions targeting adolescent girls have had limited impact on objectively measured physical activity . Interventions underpinned by theories of behavior change, and those that have a multi-component design, designed for girls only and delivered in schools, have proven to be the most effective approaches to improving physical activity levels in adolescent girls [77, 79]. In addition, interventions have been found to be more effective when the enjoyment of the activity within the lesson has been prioritized and when adolescent girls are provided with autonomy in lessons (e.g., input into activity, partner/teams, or rules) .
Interventions that facilitate the development and maintenance of meaningful relationships can also produce long-term psychological benefits for adolescents [41, 51]. Despite this evidence, programs targeting adolescents that address the recent and increasing prevalence of mental health disorders are lacking [78, 100]. Health and Well-being for Girls (HWBG) is a unique program that is the first of its kind to address levels of mental health and well-being, mindfulness, physical activity levels, and screen-time behaviors into one program, with a theoretical grounding in Self-Determination Theory and elements of Acceptance and Commitment Therapy. Therefore, the primary aim of this study is to evaluate the feasibility of a school-based health and well-being intervention on adolescent girls’ levels of well-being, mindfulness, physical activity, and screen-time.
The (HWBG) program was evaluated using a group randomized controlled trial (RCT) in one secondary school. Baseline assessments were conducted in February 2017 and were repeated at a 6-month follow-up (June 2017 immediate post-intervention). The design, conduct, and reporting of this study adhere to the Consolidated Standards of Reporting Trials (CONSORT) guidelines  and utilized the extension for Pilot and Feasibility Studies version of the CONSORT guidelines. Ethics approval for the study were obtained from the University of Newcastle, Australia (Approval No: H-2015-0189) and the New South Wales (NSW) Department of Education and Training human research ethics committees (SERAP) 2016644. The trial was registered with the Australian New Zealand Clinical Trials Registry: ACTRN12617000157370. Our results should be interpreted with caution. This study was not adequately powered to detect changes in any of the secondary outcomes. Alternatively, this study involved a convenience sample to evaluate the feasibility of the intervention when offered as an elective course to adolescent girls in year 8. Secondary outcomes were assessed to determine evidence of promise for improvements resulting from the intervention.
A member of the research team explained the program to the school principal, teachers, and students prior to recruitment. All participants (i.e., principal, teachers, and students) were required to provide written informed consent. All Grade 8 girls were eligible to participate in the study unless they had a medical condition preventing assessment or participation in the program, and those with signed consent forms were included. Randomization occurred at the class level (n=4 classes) into dose-matched treatment conditions (i.e., HWBG or elective course) prior to baseline assessments. An independent researcher randomized the classes using a computer-based random number-producing algorithm. This approach ensured an equal chance of allocation to each group. Randomization occurred prior to baseline assessments, with assessors only blinded at baseline. The sample recruited for this study was a convenience sample to evaluate the feasibility of the intervention when offered as an elective course to adolescent girls in year 8. Secondary outcomes were assessed to provide insights into the effect of the program and to determine the suitability of the measures. A sample target of approximately 90 students was recruited (four classes of approximately 22 students).
The HWBG program was guided by Self-Determination Theory  and aligned with concepts from the Acceptance and Commitment Therapy . The program was delivered during 5 h of timetabled curriculum time per fortnight over two school terms (20 weeks). Theoretical learning activities (detailed in Table 1) targeted concepts of body image, self-acceptance, mindfulness, self-compassion, stages of girlhood, celebrating differences, recognizing strengths, cyber safety, decision making, leadership, issues surrounding consent to varying lifestyle factors, consumerism, identifying quality relationships, gratitude, trust, compassion, and developing empathy. Practical lessons included mindfulness training and meditation, yoga, Pilates, games for fun, and fitness activities. An experienced and qualified physical education teacher (lead researcher), designed, and delivered the HWBG program.
The wait-list control group participated in an elective subject of their choice (dose-matched). The elective subjects were provided for 5 h per fortnight, over two school terms (20 weeks) and varied considerably. Subject choices ranged from technology and science through to performing and creative arts. The wait-list control group received the intervention in full; however, evaluation data for the control group were not collected.
Assessments were conducted at baseline (February 2017) and at 6 months (July 2017) by a member of the research team, who was not a teacher at the school and was blind to the treatment allocation. This member of the research team was blinded to group allocation at both time points.
The feasibility of the program was examined using process evaluation measures of (i) retention (how many participants completed the program and participated in all assessments pre- and post-intervention), (ii) compliance (participants’ attendance to HWBG lessons), (iii) adherence (number of HWBG lessons delivered), (iv) fidelity (components of each lesson delivered), and (v) satisfaction (participants’ post program evaluation survey results). The evaluation survey was administered at the completion of the program, with 16 items assessing satisfaction and perceived benefits using a 5-point Likert scale format (responses ranging from “Strongly Disagree” = 1 through to “Strongly Agree” = 5). Participants were also asked to indicate the specific activities they enjoyed and to comment on aspects of the program they did not enjoy (open-ended format).
Preliminary efficacy outcomes
Demographic information was collected (age, grade, and location), and a purpose-designed questionnaire based on previously used and published scales suitable for use with adolescent girls was administered. The following outcomes were assessed:
Strength and Difficulties Questionnaire (SDQ): This one-page (25-item) self-report measure of psychological adjustment. Using a 3-point Likert scale with response options of (1 = not true to 3= certainly true). The total score of each scale is used to generate scores for conduct problems, hyperactivity, emotional symptoms, peer problems, and pro-social behavior; all but the pro-social behavior are summed to generate a total difficulties score [36, 37]. The SDQ has been shown to be a reliable and valid indicator of psychopathological symptoms in adolescents .
Diener and colleagues’ psychological flourishing scale (2010) was used to measure subjective well-being. Using a 7-point Likert scale (1 = strongly disagree, to 7= strongly agree), students respond to statements relating to indicators of “eudemonic” well-being (e.g., I lead a purposeful and meaningful life). Items in the scale are summed to create a composite well-being score (possible range 8 to 56). The validity of the measure has been established previously .
Child and Adolescent Mindfulness Measure consists of a 10-item scale using a 5-point Likert scale (ranging from “never true” to “always true”) . (e.g., I think about things that have happened in the past instead of thinking about things that are happening right now).
Motivation: autonomous motivation for physical activity
Autonomous motivation for physical activity was assessed using the autonomous motivation subscale of the Behavioural Regulations in Exercise Questionnaire-2 . Students responded on a 5-point Likert scale how true each statement was for them (1 = not true for me, to 5 = very true for me). Items were adapted to reflect participation in “physical activity” rather than exercise (e.g., I value the benefits of physical activity). The factorial validity of the measure has been established previously .
Self-compassion was measured using the 26-item Self-Compassion Scale , which has been shown to be a valid and reliable measure of self-compassion . Items are both positively and negatively worded and items use a 5-point Likert scale ranging from 1 (almost never) to 5 (almost always). (e.g., when I am going through a hard time, I give myself the caring and tenderness I need).
Rumination was measured using the 22-item measure, which utilizes a 4-point Likert Scale. This scale has been previously adapted for use with adolescents, where the directions are modified so that participants report on their responses to feeling “stressed or upset” rather than “depressed” . For each item, participants indicated how often they “think or do each one” when they “feel stressed or upset” using a 4-point scale: 1 (almost never), 2 (sometimes), 3 (often), or 4 (almost always) [92, 94].
Recreational screen-time was measured using a modified version of the Adolescent Sedentary Activity Questionnaire (ASAQ) . The ASAQ requires subjects to self-report the total time spent engaged in a variety of recreational screen behaviors. Total screen-time is then determined as the sum of time spent in each screen behavior. The ASAQ has excellent reliability (Cronbach’s α = .78 and .90 for girls and boys in Grade 8, respectively)  and is considered a comprehensive measure of sedentary behaviors among young people .
Social health: a modified version of the Hemingway
The measure of adolescent connectedness   was used to measure connectedness. The subscale “self-in-the-present” was used and consists of six items using a 4-point Likert style format (ranging from 1= not true to 4 = very true).
Participants were asked to wear a sealed Yamax SW700 pedometer (Yamax Corporation, Kumamoto City, Japan) during their normal daily activities to measure physical activity for seven days (including three consecutive days and one weekend day) . This is a validated objective measure of physical activity for use with young people . The participants were asked to wear the pedometers at all times other than when sleeping or when they might get wet. Students recorded the step counts and then reset the pedometers at the start of the school day (9am) on Monday through to Friday during the assessment periods.
Statistical analyses of all outcomes were conducted using linear mixed-models using IBM SPSS Statistics for Windows (Version 20) (SPSS, INC 2010, IBM Company, Armonk, NY) with alpha levels set at p <0.05. The mixed models will be used to assess the preliminary efficacy of treatment (HWBG or control), time (treated as categorical with levels that include baseline and immediate post-intervention follow-up), and the group-by-time interaction. Mixed-models are consistent with the intention-to-treat principle. Kolmogorov-Smirnov test was used to determine normality of data and 95% confidence intervals calculated. The mixed model analysis was used to assess the preliminary efficacy of treatment (HWBG or control), time (treated as categorical with levels that include baseline and immediate post-intervention follow-up) and the group-by-time interaction. Cohen’s d was calculated by dividing the mean difference in change by the pooled standard deviation of change for each variable, and interpreted as 0.2=small effect, 0.5=medium effect, and 0.8=large effect .
Table 2 details all results for primary and secondary outcomes. The flow of participants through the HWBG study is displayed in Fig. 1. Table 3 describes the characteristics of the participants. In summary, participants for the study were year 8 girls (n=89, mean age 14 ± 0.5) from one secondary school located in a low-income area of NSW Australia, identified using the Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-economic Disadvantage.
Information leaflets, parental, and participant consent forms were sent home with all students in Grade 8 (aged 13–14 years) who elected to complete the Well-being elective in 2017. Ninety students out of 91 students (98.9%) provided assent and written consent to participate in the study.
Eighty-nine out of 90 (98.9%) participants completed the program and participated in all assessments at baseline and post-test.
On average, 88% of participants attended five lessons per fortnight for 20 weeks.
A total of 50, 1 h lessons (five lessons per fortnight), were scheduled to occur over 20 weeks or two school terms, with three of the five lessons scheduled as theory-based lessons and two of the five to be scheduled as practical-based lessons. Forty-five lessons (90%) were conducted as planned in the timetabled spaces assigned to the participants. Public holidays and staff development days affected the full delivery of scheduled lessons by interfering with all of the five lessons missed across the 20-week program.
All 45 HWBG lessons were delivered as planned.
Mean scores on the evaluation survey categories ranged from 3.71 to 4.48 of a possible 5 (1=Strongly disagree to 5=Strongly agree) (see Table 4), for the 16 items in the evaluation survey, indicating high to very high overall satisfaction rates for the program. “I think that this program is so important to girlhood. I think that this class should be more open to other schools. I am grateful to have been in this class and learning that it is okay to be myself”. “I loved this program, it has taught me to be kind and grateful to myself and others. I really enjoyed meditating”. “The HWBG program helped me with the issues that are occurring in society such as body shaming, stress and criticism”. “The sport has paid off and was very enjoyable”.
Mental health outcome
Our results indicate medium positive effects on four efficacy measures (evaluated using the Strengths and Difficulties Questionnaire), including total difficulties −2.0 [95% CI (−3.93 to −0.10), d=0.45], social health +1.7 [95% CI (0.25 to 3.16), d=0.50], problems with peers −1.0 [95% CI (−1.65 to −0.34), d=0.65] and internalizing −1.2 [95% CI (−2.28 to −0.12), d=0.47]. No effects resulted for mindfulness, self-compassion, or rumination.
Physical health outcomes
Small positive effects were observed for total PA (d = 0.24) and weekend PA (d = 0.32), and no effect was observed for weekday PA (d = 0.07).
No effects were observed for recreational screen-time levels for weekday, weekend, or total screen-time.
The primary objective of this study was to determine the feasibility of delivering the HWBG program in a secondary school setting as an elective subject for year 8 students. We also investigated the preliminary efficacy of the program on adolescent girls’ mental health, screen-time and physical activity levels. The feasibility of the program was confirmed with satisfactory retention, compliance, adherence, fidelity, and satisfaction ratings. The HWBG program was also successful in improving measures of mental and social health in girls participating in the program, in comparison to a control group.
Feasibility of HWBG
The positive feedback and enjoyment scores reported by participants in the HWBG program implies that the program was well received by this group and feasible for use with year 8 girls in a secondary school setting. Participants reported the HWBG program to be enjoyable as indicated in the evaluation data (mean rating of 4.44 out of a possible 5.0). This is an important finding as enjoyment is one of the key mediators of engagement in school [26, 39]. The supportive environment created in HWBG was recognized by participants and rated highly: “I liked the fact that I had realised that all the girls in the class were feeling similar problems to mine and that I am not alone”. Evaluation data (mean score 4.35/5 and SD of 0.93) demonstrates that participants enjoyed the girls only program and working with each other. Enjoyment of physical activity is also observed to be a mediating factor contributing to increased participation in physical activity . High levels of physical activity enjoyment during adolescence is also likely to lead to healthy lifelong physical activity behaviors . Evaluation data from HWBG demonstrates high levels of enjoyment from participants regarding physical activity (mean score 4. 2 ± 0.8 out of 5). In addition, participants responded positively with a mean score of 4.1 out of 5, when asked if the physical activity sessions helped them to realize that they can do fitness activities.
Our results showed that physical activity and mindfulness were the two most highly rated program components. This is potentially attributed to the purposeful creation of an inclusive and socially supportive environment transcending competition, with a focus on lowering levels of judgment among participants. Elements of Acceptance and Commitment Therapy and mindfulness were used to navigate challenges and overcome barriers to physical activity through the willingness to experience negative emotions or thoughts whilst having the ability to engage in valued behaviors . Self-compassion was utilized to create a supportive environment for adolescent girls in HWBG and entails three basic components of (a) self-kindness, (b) common humanity, and (c) mindfulness . Self-compassion involves understanding one’s inadequacies and failures, utilizing a non-judgmental attitude toward the self and viewing these as part of a common human experience . Improving levels of self-compassion in adolescents has been observed to promote positive body image in this group [31, 82]. Body image is recognized as a barrier to physical activity for adolescents , and individuals with higher levels of body image are more inclined to participate in physical activity than those adolescents with lower levels of body image . The HWBG program had a positive impact on body image, with participants’ responses averaging 4.5 out of 5 when asked whether body image lessons helped them to realize that they do not need to be perfect. Qualitative data also support this finding: “It’s a great elective and I have learned lots of new skills and ways to see myself.”
An intervention program aimed at increasing physical activity levels of adolescent females known as “Girls on the Move” (GOTM) observed the importance of enjoyment of physical activity and social support for increasing levels of physical activity. Similar to the HWBG program, GOTM observed improved levels of physical activity enjoyment and social support in physical activity . A unique element of the HWBG program was the use of ACT and mindfulness in addressing perceived barriers to physical activity for adolescent females including body image issues, time constraints , dislike of physical activity, and lack of perceived competence .
Mindfulness was ranked as the second highest component enjoyed by participants. Participants utilized the practice to increase their awareness of thoughts and emotions along with components of ACT such as acceptance, diffusion, being present, and commitment to values. Participants in HWBG learned to address and overcome barriers to participation in physical activity through the use of these therapies: “I mostly liked the physical activity because I never thought I could actually keep going in the 30 second workout, and that made me realise I could do more”. Only a small positive effect was observed for levels of total physical activity [+11183.7; 95% CI −3164.31–25531.79; p=0.124; d=0.24]—however, this could be interpreted as a positive outcome as a decline in physical activity levels was not observed (which is typical of adolescent girls). Furthermore, despite only small improvements in physical activity and mindfulness levels observed in the HWBG study the participants reported a very high level of enjoyment toward both of these program components.
Participants also commented that the HWBG program was fun and exciting. “What I enjoyed about HWBG was the practical lessons because it made me enjoy doing sport and I made a lot of new friends. I loved the chocolate meditation, but most of all just the whole program, it was really fun and exciting.” Research suggests that fun and excitement are elements that have contributed to the positive effects observed for the social and psychological health improvement levels of the participants at a 6-month follow-up [57, 63, 98].
Medium positive effects were observed for internalizing and total difficulties among the participants in the HWBG program. Internalizing refers to symptoms of depression, anxiety, hypersensitivity, and worry problems . In general, girls report more internalizing problems than boys, although these differences are small, according to a meta-analysis review . Among youth, internalizing problems include lack of joy, impaired self-worth, disrupted sleep, and appetite patterns which negatively impact the everyday lives and health status for youths. Increased risk of suicide and self-harm are also associated with internalizing symptoms . Warm, caring environments where both peers and adults are supportive, contribute to protection against increased levels of internalizing among adolescents . Given that approximately 20% of adolescents worldwide have a diagnosed mental health illness , this program may provide a possible strategy for addressing psychological health issues within this high-risk population.
The Penn Resiliency Program (PRP) is a cognitive behavioral therapy program designed to reduce internalizing in adolescents. The PRP has demonstrated small but reliable reductions in depressive symptoms in adolescents ), but has reported no intervention effects on internalizing levels . Research has shown that not all people suffering depressive and anxiety disorders respond well to cognitive behavior therapy , and there are high rates of relapse following treatment —warranting efforts to develop and trial additional methods to address these symptoms. MoodGym is another wellbeing intervention aimed at reducing depressive symptoms in adolescent girls and is a self-directed program that is completed online. MoodGym reported benefits on self-reported symptoms of depression, but observed low completion rates—suggesting challenges with adherence levels to online programs .
Mindfulness practices were used consistently in the HWBG program aiming to develop a flexibility of thinking and the ability to become an observer of the mind without getting “caught up” in negative thought patterns. Participants reported in the evaluation data that the HWBG program had a positive impact on their levels of emotional health: “Health and well-being has helped me with my everyday life. It has made me confident with who I am. I am super happy that this course has changed the way I think, because I have been in a dark headspace for a while, which definitely isn’t good”. Although initial findings have been positive, there is a need for more rigorous evaluation of mindfulness training in adolescent populations .
Evidence demonstrates the importance of managing emotional health problems early in adolescence and shifting from treatment to prevention, as there are implications for school attendance, self-esteem, and prosocial behavior [67, 104]. As emotional ill health can increase in this stage of development, early adolescence is an opportune time for interventions of a preventative nature. Mindfulness-based interventions (MBI) may directly reduce stress, anxiety, and depression, whilst increasing psychological well-being . This is supported by a recent meta-analysis indicating significant positive effects of MBI across randomized controlled trials with active control groups on mindfulness (d= .42), depression (d= .47), and anxiety/stress (d= .18) . Furthermore, school-based mindfulness programs have shown to prevent internalizing problems in adolescents .
Medium positive effects were observed for levels of social health and problems with peers among the participants in HWBG. This is a promising result as healthy interpersonal relationships and social support are integral to well-being, and levels of physical and mental health [50, 74, 97]. Social isolation and loneliness however are associated with a broad range of mental health difficulties in adolescents (e.g., suicidal ideation, anxiety, depression, substance misuse, self-injury) [44, 46, 61, 90]. The HWBG program has a strong focus on creating a supportive learning environment where participants have the autonomy to discuss issues that are of importance to them without fear of judgment from others. This element may have contributed to improvements in these measures of social health and problems with peers. Connecting in a caring environment and discussing common concerns and challenges in their lives may have also enhanced their sense of competency .
Participants enjoyed completing the program designed for girls only and working collaboratively in this girls’ only zone. Feasibility results observe a mean result of 4.4 out of a possible 5.0 when asked whether they enjoyed working together and qualitative data reports: “I enjoyed being able to talk to other girls my age who normally I wouldn’t really talk to”. “I loved being with a group of girls only and the feeling of not being judged”. High levels of reported enjoyment of HWBG from the participants and improvements in social health indicate that strong connections were established among the participants which contributed to improved levels of well-being  and positive outcomes in the physical activity setting . Our positive findings with regard to social health will add to the limited literature in this field. Strategies that focus on the promotion of good social health and social connectedness may offer a level of protection for young people from loneliness and contribute to improved levels of well-being [22, 58, 83].
Strengths and limitations
The strengths of this study include the novel intervention design, adherence to CONSORT guidelines, and the assessment of outcome using assessors who were blinded to group allocation. However, there are some limitations that should be acknowledged. First, the study included a small convenience sample in one secondary school. Second, a member of the research team, who was also a teacher at the school, delivered the program. There is inherent risk of bias associated with this feasibility study as the teacher, who was also a member of the research team, designed and delivered the program and was also involved in the evaluation of the program. And although conducting a single site feasibility study is a limitation, it is an important and necessary step in testing program content and delivery under “ideal conditions” prior to large-scale implementation. Given that this study was designed to establish feasibility and preliminary efficacy of the program for use with adolescent girls in the school setting, using a member of the research team for delivery was a necessary step. Third, physical activity was assessed using pedometers, not accelerometers which are considered more appropriate for the evaluation of school-based physical activity interventions. Future studies are encouraged to use accelerometers to provide an objective measure of physical activity intensity and duration . To establish effectiveness and scalability, further large-scale trials are needed whereby teachers in the school will be trained utilizing a “train the teacher model” in order to reach more schools in a variety of cohorts without researcher assistance .
Developing a targeted intervention for a population group who have been recognized as “at risk” of developing a range of short- and long-term health problems (associated with low levels of physical activity, well-being, mental health, and screen-time behaviors) may have a profound impact. This feasibility study may have positive short- and long-term benefits for adolescent girls participating in the program, but future large-scale program implementation and dissemination in secondary schools is needed for wide scale impact. Based on the results of this study, we would recommend the program be evaluated in a cluster FRCT involving multiple schools. In this phase of research, the program should be delivered by teachers who have received training, rather than members of the research team. Progression to a full-powered trial will be dependent upon the feasibility and preliminary efficacy of the “train-the-teacher” delivery model.
HWBG is a unique program that is the first of its kind to combine well-being, mental health, physical activity, mindfulness, and screen-time behaviors into one program with a theoretical grounding in Self-Determination Theory, supported by elements of Acceptance and Commitment Therapy. Training educators in mindfulness would be highly recommended for effective delivery of this intervention, as practicing mindfulness within an educational setting provides a potentially feasible and effective strategy for improving the psychological health of young people .
Our findings suggest that the HWBG program is feasible for use in one school setting, based on high levels of retention, satisfaction, and fidelity. In addition, our study has provided preliminary evidence that the HWBG program may facilitate improvements in psychological and social health outcomes in adolescent girls. Based on the results of this study, we would recommend the program be evaluated in a cluster FRCT involving multiple schools before progressing to a large-scale effectiveness trial.
Availability of data and materials
The datasets during and/or analyzed during the current study available from the corresponding author on reasonable request.
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We are grateful for the voluntary participation of the year 8 female students involved in this study. We declare that the results of this study are presented clearly, honestly, and without fabrication, falsification, or inappropriate data manipulation.
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Ethics approval and consent to participate
Ethics approval for the study were obtained from the University of Newcastle, Australia (Approval No: H-2015-0189), and the New South Wales (NSW) Department of Education and Training human research ethics committees (SERAP) 2016644.
All participants (i.e., principal, teachers, and students) were required to provide written informed consent.
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We have read and followed the instructions for authors outlined by the Journal of Pilot and Feasibility Studies, and all authors have approved the final version of the manuscript. The current manuscript is not currently under consideration elsewhere, nor will it be submitted elsewhere until a final decision has been made by the Journal of Pilot and Feasibility Studies. If accepted for publication, it will not be published elsewhere.
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The design, conduct, and reporting of this study adhere to the Consolidated Standards of Reporting Trials (CONSORT) guidelines . Ethics approval for the study were obtained from the University of Newcastle, Australia (Approval No: H-2015-0189) and the New South Wales (NSW) Department of Education and Training human research ethics committees (SERAP) 2016644.
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White, K., Lubans, D.R. & Eather, N. Feasibility and preliminary efficacy of a school-based health and well-being program for adolescent girls. Pilot Feasibility Stud 8, 15 (2022). https://doi.org/10.1186/s40814-021-00964-3
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