Child Care Quality: Does It Matter and Does It Need to be Improved? (Full Report). Table 11

05/24/2000

TABLE 11. Regression Results for Period and Cumulative Effects at 24 and 36 Months:
  Mean Standard Deviation Coefficient Same Period Only Coefficients Cumulative Impact-
1SD to +1 SD
Impact-
1SD to +1 SD
CDI VOCABULARY PRODUCED †            
24 mo.: language stimulation 58.62 30.92 0.178 0.338 11.027 20.91
15 mo.: language stimulation 26.51 15.79   0.30   9.36
24 mo.: positive caregiver rating 3.96 2.87        
6–15 mo.: positive caregiver rating 14.63 2.89        
Total         11.027 30.27
Reynell: Vocabulary Comp.            
24 mo.: language stimulation 50.56 27.09   -0.115   -6.25
15 mo.: language stimulation 58.62 30.92   0.195   12.08
24 mo.: positive caregiver rating 19.5 3.29 0.133 0.787 0.87 5.18
6–15 mo.: positive caregiver rating 13.96 2.87        
Total         0.87 11.00
Source: NICHD, 1999b.

Notes: Only variables that are statistically significant at 5% level are reported.

Mean = 28.82

Mean = 28.73

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