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. Author manuscript; available in PMC: 2011 Nov 4.
Published in final edited form as: Dev Psychol. 2009 Mar;45(2):383–400. doi: 10.1037/a0014960

Table 8. Results of Regression Models Predicting School Outcomes.

Assignment to
program group
Risk index
Program group
× Risk index
Outcome B (SE) B (SE) B (SE) R2 F
Average achievement
 Subgroup modela 0.39 (0.13)** .15 1.81*
 Interaction modelb −0.16 (0.13) 0.00 (0.01) 0.01 (0.00)* .07 2.65***
Below average (%)
 Subgroup modela −5.92 (3.22) .09 1.02
 Interaction modelb 4.92 (3.56) −0.07 (0.14) −0.28 (0.12)* .04 1.60*
Engagement in school
 Subgroup modela −0.06 (0.23) .09 1.11
 Interaction modelb 0.16 (0.26) 0.01 (0.01) −0.01 (0.01) .04 1.49
Ever repeated a grade (%)
 Subgroup modela − 1.79 (4.96) .22 3.11***
 Interaction modelb 2.90 (5.06) −0.13 (0.20) −0.08 (0.18) .16 7.76***
Ever suspended (%)
 Subgroup modela 0.88 (3.28) .12 1.55
 Interaction modelb −2.10 (3.43) −0.25 (0.13) 0.07 (0.12) .07 3.03***

Note. The sample includes children ages 5-12 at the time of the 4-year interview in families who were randomly assigned from August 1994 to February 1995. The following covariates, measured at or prior to study entry, were included in both the subgroup and interaction regression models: gender, age, race/ethnicity, marital status, high school or GED diploma, first time welfare applicant, employment prior to random assignment (RA), earnings in year prior to RA, earnings in year prior to RA squared, earnings in quarter prior to RA, Aid to Families with Dependent Children receipt prior to RA, food stamp receipt prior to RA, number of children in the household, and age of youngest child.

a

This model includes only those considered to be at high risk of hitting the time limit (N = 295).

b

This model includes all members with a time-limit risk index (N = 1,104).

p < .10.

*

p < .05.

**

p < .01.

***

p < .001.