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Table 4 Initial CTC-F7 and CTQ-6 – descriptive item and scale values

From: Familial risk and protective factors in alcohol intoxicated adolescents: psychometric evaluation of the family domain of the Communities That Care Youth Survey (CTC) and a new short version of the Childhood Trauma Questionnaire (CTQ)

Domain abbrev.

Domain

N items

Missing %

M (Max)

Cα

ritc Min-Max

Pi

EFA Min-Max

FR_2

Poor family management

7

9.1

22.7 (28)

0.69

0.32 – 0.47

0.72 – 0.86

0.4 – 0.59

FR_3

Family conflict

3

7.9

6.2 (12)

0.81

0.60 – 0.74

0.44 – 0.57

0.66 – 0.90

FR_4

Parental attitudes favorable to drug use

3

6.1

3.8 (12)

0.40

0.25 – 0.30

0.25 – 0.33

0.39 – 0.53

FR_5

Parental attitudes favorable to antisocial behavior

4

4.7

4.5 (16)

0.56

0.25 – 0.45

0.25 – 0.29

0.37 – 0.65

FP_1

Family attachment

6

12.3

17.2 (24)

0.79

0.47 – 0.67

0.51 – 0.79

0.37 – 0.93

FP_2

Family opportunities for prosocial involvement

3

8.2

9.4 (12)

0.74

0.53 – 0.60

0.68 – 0.76

0.63 – 0.79

FP_3

Rewards for prosocial family involvement

2

6.7

6.5 (8)

0.87

0.77

0.74 – 0.78

-

CTQ-6

Physical abuse, emotional abuse, emotional neglect

6

10.5

4.6 (24)

0.82

0.49 – 0.80

0.25 – 0.41

0.57 – 0.79

  1. CTC = Communities that Care Youth Survey Instrument; CTQ = Childhood Trauma Questionnaire; M = Mean Value, Cα = Cronbach’s α total scale, ritc = Item-Total Correlation, pi = Item Difficulty, EFA = Factor Weighting in Exploratory Factor Analysis