Feasibility of an app-based parent-mediated speech production intervention for minimally verbal autistic children: development and pilot testing of a new intervention

Table 4 Usability data for the ‘high’ user group

ID	Planned weeks of intervention	Delay to intervention start (weeks)	Actual weeks of intervention	% Weeks adhering to intervention (%)	% Total test trials completed (%)	Intervention trials/week	Min/week during intervention	Min/week during baseline
1	12	3	6	50	69	18	9.04	8.64
2^a	10	3	5	50	71	0.6	8.72	6.25
3	7	0	4	57	71	9.8	11.61	6.38
4^a	8	0	7	88	94	3.7	3.88	2.04
12	11	1	7	64	76	6.4	5.32	2.21
10	12	0	9	75	88	15.9	35.85	14.47
11	9	1	7	78	75	14.1	13.65	2.92
19	7	3	3	43	88	76	20.74	8.06
18	6	2	2	33	100	1	1.44	4.02
7	13	1	10	77	83	6.3	11.63	11.11
Mean	9.5	1.4	6.0	61	82	15.2	12.2	6.6
SD	2.5	1.3	2.5	18	11	22.2	9.9	4.1
Min	6.0	0.0	2.0	33	69	0.6	1.4	2.0
Max	13.0	3.0	10.0	88	100	76.0	35.8	14.5

Actual weeks = planned weeks minus delay minus missed weeks (where intervention not used at all for 1 week)
^aParticipants who completed very few trials in the intervention but were included in this group due to their adherence to the test schedule

ISSN: 2055-5784