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Table 2 Pre and post scores of outcome measures

From: Evaluation of an anti-stigma intervention for Mexican psychiatric trainees

  Mean SD Mean SD T P d Effect
Pre-assessment Post-assessment
OMI scale
 Total score 61.12 9.34 57.82 9.35 1.94 .071 0.35 Small
 Subscales
  Separatism 16.56 4.23 15.16 3.45 2.05 .056 0.36 Small
  Stereotypes 7.39 1.91 6.38 1.53 3.73 .002 0.58 Medium
  Restriction 6.22 1.70 6.0 2.37 .514 .614 0.10 Small
  Benevolence 10.59 2.26 10.17 2.32 .907 .387 0.18 Small
  Pessimism 13.17 2.40 12.11 3.61 1.34 .197 0.34 Small
  Stigmatisation 7.06 1.76 6.88 1.87 .410 .687 0.10 Small
MHPSI
 Total score 54.59 16.14 44.64 12.9 2.496 .024 0.68 Medium
 Subscales
  Attitudes 20.22 3.82 18.50 5.43 1.390 .182 0.37 Small
  Behaviours 17.18 8.58 14.70 3.70 1.318 .206 0.37 Small
  Influence 17.83 7.34 13.16 6.35 3.384 .004 0.68 Medium
Changing Minds questionnaire
 Depression 14.06 4.45 11.52 2.92 2.501 .024 0.67 Medium
 Panic attack 13.94 3.75 11.59 3.20 2.485 .024 0.67 Medium
 Schizophrenia 16.53 5.49 14.52 4.22 1.892 .077 0.41 Small
 Dementia 18.12 5.26 15.47 4.62 2.555 .021 0.53 Medium
 Eating disorder 14.41 4.24 11.88 4.00 2.198 .043 0.61 Medium
 Personality disorder 18.53 6.33 14.94 4.94 2.532 .022 0.63 Medium
 Drug addiction 17.65 5.02 14.23 4.60 2.542 .022 0.71 Medium
 Alcohol addiction 16.94 4.61 13.94 4.93 2.149 .047 0.62 Medium
  1. Effect size was considered small if the standardised Cohen’s d was 0.30‑0.50, medium if it was 0.50‑0.80 and large if it was above 0.80