Table 3.

Predicting Course Failures at Program Exit from Background Factors, Program Participation, and the Interaction of Program Participation × Background Factors

	Pregnancies at Program Exit
Predictors	β	Odds ratio	χ2	Δχ2
Step I. main effects
Demographic background
Grade	−.15***	0.77
Sex	−.04
Minority	.07**	1.30
Proximal behavioral risks
Prior course failures	.44***	5.46
Prior school suspensions	.12***	1.76
Demographic risks
Parents education level	−.08***	0.85
Single-parent household	.08***	1.35
Program participation	−.14***	0.60
Summary statistics for step I			671.5***	671.5***
Step II. Interactions with demographic background
Prog. participation × grade	−.02
Prog. participation × gender	.06*
Stratified odds ratios for prog. partic. for:
Females		0.52***
Males		0.83
Prog. participation × minority	.05*
Stratified odds ratios for prog. partic. for:
Racial/Ethnic Majority Students		0.74*
Racial/Ethnic Minority Students		0.52***
Summary statistics for step II			683.2***	11.7*
Step III. Interactions with behavioral risks
Prog. participation × prior course failures	.03
Prog. participation × prior suspensions	−.05*
Stratified odds ratios for prog. partic. for students:
with no prior suspensions		0.66*
with prior suspensions		0.43***
Summary statistics for step III			690.2***	6.9**
Step IV. Interactions with familial risks
Prog. participation × par. educ. level	−.05*
Prog. participation × single-parent household	−.00
Summary statistics for step IV			694.7	4.5

Note: ***p < .001; **p < .01; *p < .05. β weights and odds ratios are from variables entry into model. Odds ratios are presented only for significant βs within significant blocks of variables.