Table 2.

Interaction Effects of Intervention Across Assessment Periods.

Factor	Interaction Effect Across Time 1–3 (n = 255)	I Versus C			Difference Between Means I Versus C
		T1 M ± SD	T2 M ± SD	T3 M ± SD	Time 1	Time 2	Time 3
STD knowledge	F(1.854, 250.294) = 55.494*** versus 9.35 ± 2.30	8.58 ± 2.51 versus 9.83 ± 2.43	12.62 ± 2.08 versus 10.10 ± 2.09	12.06 ± 2.08	p < .001	p < .001	—
Condom use negotiation	F(2, 266) = 1.092 versus 11.94 ± 2.66	11.25 ± 3.09 versus 12.72 ± 2.40	12.52 ± 3.12 versus 12.21 ± 2.74	12.36 ± 3.01	—	—	—
Condom communication skills	F(1.799, 235.704) = 13.395*** versus 2.30 ± 1.59	2.08 ± 1.77 versus 4.24 ± 2.47	2.56 ± 1.71 versus 3.35 ± 1.59	2.40 ± 1.42	p < .001	p < .016	p < .001
Condom skill assessment	F(1.756,235.341) = 15.753*** versus 6.48 ± 1.70	6.66 ± 1.54 versus 6.63 ± 1.55	8.46 ± 0.99 versus 6.87 ± 1.29	8.12 ± 1.01	p < .001	p < .001	—
Perceived STD/HIV risk	F(2, 266) = 1.450 versus 4.69 ± 3.02	5.33 ± 3.31 versus 2.60 ± 2.25	2.62 ± 2.92 versus 2.51 ± 2.20	2.21 ± 2.33	—	—	—
Number of sex partners during the month before arrest	F(1.523,205.630) = 1.005 versus 2.75 ± 2.92	3.35 ± 3.43 versus 0.92 ± 0.96	0.91 ± 1.67 versus 1.28 ± 1.13	1.48 ± 2.43	—	—	—

Note. One-way repeated measures analyses of variance (ANOVAs) and 3 × 2 ANOVAs conducted to evaluate main effects of Men in STD Training and Empowerment Research Study at T1, T2, and T3. Post hoc tests using Bonferroni correction conducted to compare across periods. T1 = Time 1; T2 = Time 2; T3 = Time 3; C = control group; I = intervention group; M = mean; SD = standard deviation; STD = sexually transmitted disease.

^*p < .05.

^**p < .01.

^***p < .001.