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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Dev Psychol. 2017 Nov 20;54(4):772–787. doi: 10.1037/dev0000457

Table 1.

Sample descriptive characteristics: Mean (SD) or N (%)

Overall Sample Treatment Control
Child and family characteristics n = 602 n = 308 n = 294
 Child Age (months) 49.16 (7.38) 49.22 (7.36) 49.10 (7.42)
 Gender
  Boy 281 (47%) 156 (51%) 125 (43%)
  Girl 321 (53%) 152 (49%) 169 (57%)
 Child Race/Ethnicity
  Latino 162 (27%) 84 (27%) 78 (27%)
  Black 396 (66%) 205 (66%) 191 (65%)
  Non-Latino White 18 (3%) 3 (1%) 15 (5%)
  Other 26 (4%) 16 (5%) 10 (3%)
 4+ children in household 0.25 (0.43) 0.24 (0.43) 0.26 (0.44)
 Spanish speaking household 0.23 (0.42) 0.21 (0.41) 0.25 (0.43)
 Single parent household 0.71 (0.45) 0.72 (0.45) 0.69 (0.46)
 Household poverty-related risksa 0.37 (0.33) 0.39 (0.33) 0.36 (0.32)
 Child age 3 at HS entry 0.44 (0.50) 0.45 (0.50) 0.43 (0.50)
Teacher and classroom characteristics n = 35 n = 17 n = 18
 Teacher BA 21 (60%) 10 (59%) 11 (61%)
 Teacher age (years) 39.33 (10.10) 37.81 (9.38) 40.94 (10.78)
 Teacher depression 2.60 (2.10) 3.22 (1.65) 1.94 (2.31)
 Teacher job demand 2.68 (0.59) 2.85 (0.64) 2.50 (0.50)
 Teacher job control 3.29 (0.67) 3.38 (0.68) 3.20 (0.66)
 Behavior management (CLASS) 4.86 (1.07) 4.56 (1.11) 5.18 (0.96)
 Teacher sensitivity (CLASS) 4.82 (1.06) 4.56 (0.98) 5.11 (1.10)
 Class negative climate (CLASS) 2.05 (1.00) 2.18 (1.13) 1.90 (0.86)
 Classroom overall quality (ECERS) 4.72 (0.81) 4.49 (0.79) 4.97 (0.79)
 N students in classroom 16.03 (2.92) 16.06 (3.08) 16.00 (2.83)
 N adults in classroom 2.36 (0.69) 2.41 (0.78) 2.31 (0.59)
Center characteristics n = 18 n = 9 n = 9
 Family support worker on staff 1.39 (2.57) 0.44 (0.53) 2.33 (3.43)
 N children ages 3–5 111.67 (126.08) 95.44 (55.39) 127.89 (173.54)
 Proportion Black 0.73 (0.36) 0.69 (0.39) 0.78 (0.35)
 Proportion teachers with BA 0.45 (0.40) 0.49 (0.36) 0.40 (0.46)
 Proportion TAs with college 0.47 (0.38) 0.39 (0.34) 0.56 (0.42)
 Proportion single parent families 0.85 (0.17) 0.84 (0.17) 0.87 (0.19)
 Proportion families employed 0.71 (0.29) 0.81 (0.22) 0.62 (0.34)
 Proportion families using TANF 0.39 (0.36) 0.35 (0.37) 0.42 (0.36)

Note:

a

Family poverty-related risk is the proportion of risks related to mother-reported income, education, and employment experienced by the family (possible range = 0 to 1)