Table 2.

Mean adherence rates by study period

	Full sample M(SD) (n = 26)	Only received step 1 M(SD) (n = 8)	Received step 2 M(SD) (n = 17)
Baseline	.40 (.28); range: .02–1.00	.69 (.29); range: .21–1.00	.30 (.15); range: .11–.60
Step 1	.45 (.29); range: .00–1.00	.73 (.20); range: .46–1.00	.33 (.21); range: .02–.68
Study end	.58 (.27); range: .00–.97	.46 (.34); range: .00–.89	.65 (.21); range: .20–.97

Baseline adherence was calculated as an average of the last four weeks of each participant’s baseline period. Step 1 adherence was calculated as an average of the first four weeks of the Step 1 study period, and Study End adherence was calculated as an average of the last four weeks of the study for each participant, regardless of whether they finished the study in Step 1 (n = 8) or Step 2 (n = 17)