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Table 2 Descriptive statistics for the study variables (n = 1604)

From: A longitudinal study of socioeconomic status, family processes, and child adjustment from preschool until early elementary school: the role of social competence

Description Range M SD Cronbach’s α
Marital conflict: Quality of Co-Parental Communication Scale (QCCS)
 Co-parental Conflict 4–20 9.88 3.01 .77
 Co-parental Support 6–30 25.16 4.14 .86
Parenting practice: Alabama Parenting Questionnaire (APQ)
 Poor monitoring/supervision 10–50 12.87 2.94 .71
 Inconsistent discipline 6–30 14.53 3.77 .73
 Corporal punishment 3–15 7.06 2.17 .72
 Positive parenting 6–30 22.35 3.49 .76
 Involvement 10–50 37.99 5.07 .75
Social competence: Social Skills Questionnaire (SSQ)
 Cooperation 0–16 10.97 4.13 .94
 Self-control 0–16 14.18 2.64 .90
 Assertion 0–16 14.08 2.37 .84
Child adjustment: Strengths and Difficulties Questionnaire (SDQ)
 T1 internalizing problems 0–20 3.34 2.70 .65
 T1 externalizing problems 0–20 5.02 3.21 .74
 T2 internalizing problems 0–20 3.88 3.04 .71
 T2 externalizing problems 0–20 5.15 3.29 .77
  1. T1: Time 1, preschool; T2: Time 2, first grade