34
Table 1
Sample Characteristics
Variable Clinic-referred Comparison (n = 30) (n = 30)
Sex of child (% male) 76% 73% Child race (%)
Caucasian 83% 77% African American 7% 7% Other 10% 16% Mean child age (months) 62.0 57.0 PPVT- R standard score'
M 92.6 102.9 SD 14.8 17.3 Family composition (%)
Two-parent home 93% 87% Single-parent home(s) 7% 13% Paternal age (years) 36.7 36.8 Paternal education (years) 13.8 14.8 SESb
M 41.8 44.0 SD 11.5 13.0 Note. PPVT-R = Peabody Picture Vocabulary Test Revised (Dunn & Dunn, 1981). b SES = Socioeconomic status according to the Hollingshead (1975) Index. p < .05.
The families' socioeconomic status (SES) was calculated using Hollingshead's
Four Factor Index (Hollingshead, 1975), which yields a score based on parents' education,