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. 2017 Sep 13;8:1580. doi: 10.3389/fpsyg.2017.01580

Table 1.

Descriptive statistics (range, means, standard deviation, percentages) and item level standardized factor loadings (β) of sample, predictor and dependent variables (n = 3,375).

Range Mean SD β %
ECONOMIC DEPRIVATION(T1)
Income quintiles 1–5 3.06 1.42 0.83
Subjective poverty 1–5 2.79 0.87 0.50
STRESS(T2)
Upset 1–4 1.64 0.71 0.74
Difficult to relax 1–4 1.83 0.79 0.71
Irritable 1–4 1.73 0.68 0.72
EDUCATIONAL INVESTMENT(T2)b
Look at books 1–7 0.81 1.76 0.56
Nursery rhymes 1–7 2.02 2.66 0.47
Recognizing shapes, letters, numbers 1–7 3.77 2.88 0.37
NUTRITIONAL INVESTMENT(T2)b
Vegetables 1–5 2.26 0.75 0.48
Fruits 1–5 1.88 0.79 0.63
COGNITIVE ABILITY(T3)
Naming vocabulary 20–80 47.95 12.37 0.69
Picture similarity 20–80 50.25 10.58 0.57
Harsh Discipline (T3) 0–1 0.39 0.49
CONDUCT PROBLEMS (T4, T5, T6)a
Tantrums 0–2 0.92, 0.79, 0.68 0.72, 0.70, 0.69 0.66, 0.71, 0.74
Obedient 0–2 0.68, 0.59, 0.56 0.52, 0.57, 0.58 0.54, 0.57, 0.60
Fights 0–2 0.11, 0.10, 0.09 0.33, 0.34, 0.31 0.65, 0.65, 0.70
Lies 0–2 0.20, 0.22, 0.22 0.43, 0.45, 0.45 0.47, 0.52, 0.56
Steals 0–2 0.03, 0.03, 0.03 0.19, 0.21, 0.20 0.50, 0.50, 0.56
Gender (male) 51.3
Ethnicity (White) 96.5
a

The values represent range, mean, standard deviation (SD) and factor loadings of items used to measure conduct problems (β) across waves 4, 5, and 6 of data collection respectively. Means, standard deviations, factor loadings and percentages are based on a weighted sample;

b

higher scores represent low educational and nutritional investment.