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. Author manuscript; available in PMC: 2017 Sep 24.
Published in final edited form as: Child Maltreat. 2017 Feb 2;22(2):174–179. doi: 10.1177/1077559517691126

Table 3.

Multiple Regression Analysis of Attachment and Biobeha-vioral Catch-Up (ABC) Intervention Effects on Children’s Receptive Vocabulary.

Variable Unstandardized B SE t p Value
Step 1: Covariates
 Constant 91.81 3.87 23.74 .000
 Gender (female) 5.53 4.44 1.25 .219
 Number placements −5.80 5.13 −1.13 .263
 Low caregiver education −8.88 7.93 −1.12 .269
 Low caregiver income 1.93 5.79 0.33 .741
Step 2: Primary predictor
 Constant 87.51 4.23 20.67 .000
 Intervention group (ABC) 9.39 4.37 2.15 .037

Note. Low caregiver education: 0 = at least some college; 1 = high school degree or less than high school degree; low caregiver income: 0 = >US$30,000, 1 = <US$30,000.