TABLE 2. Study Completers and Intent-to-Treat IES Mean Scores and Standard Deviations at Pretest, 1-Month, and 3-Month Follow-up Assessments and Results of Within Group Effect Sizes



T1

T2

T3

ESa T1 – T2

ES T1 – T3


Completers (n = 57)
    Control 21.78 (15.13) 9.38 (10.88) 6.34 (9.78) 0.95 1.24
    CISD-A 26.88 (14.31) 16.40 (16.78) 11.28 (12.85) 0.67 1.15
Intent-to-treat (n = 75)
    Control 22.60 (16.09) 12.02 (13.89) 9.71 (13.79) 0.71 0.86
    CISD-A

27.30 (14.86)

19.36 (17.49)

15.48 (15.73)

0.49

0.77

Note. T1 = pretest; T2 = 1-month follow-up; T3 = 3-month follow-up.

a Effect sizes were calculated using Cohen's d statistic, with the magnitude of change defined as the difference between assessment group means divided by the pooled standard deviation.