Reliability and validity of the Turkish version of the situational self-efficacy scale for fruit and vegetable consumption in adolescents.
OBJECTIVE
The purpose of this research was to examine the psychometric properties of the Turkish version of the situational self-efficacy scale for vegetable and fruit consumption in adolescents.


METHODS
This was a methodological study.


METHODS
The study was conducted in four public secondary schools in Istanbul, Turkey.


METHODS
Subjects were 1586 adolescents.


METHODS
Content and construct validity were assessed to test the validity of the scale. The reliability was assessed in terms of internal consistency and test-retest reliability.


METHODS
For confirmatory factor analysis, χ(2) statistics plus other fit indices were used, including the goodness-of-fit index, the adjusted goodness-of-fit index, the nonnormed fit index, the comparative fit index, the standardized root mean residual, and the root mean square error of approximation. Pearson's correlation was used for test-retest reliability and item total correlation. The internal consistency was assessed by using Cronbach α.


RESULTS
Confirmatory factor analysis strongly supported the three-component structure representing positive social situations (α = .81), negative effect situations (α = .93), and difficult situations (α = .78). Psychometric analyses of the Turkish version of the situational self-efficacy scale indicate high reliability and good content and construct validity.


CONCLUSIONS
Researchers and health professionals will find it useful to employ the Turkish situational self-efficacy scale in evaluating situational self-efficacy for fruit and vegetable consumption in Turkish adolescents.
Hasibe
H
Kadioglu
Saime
S
Erol
Ayse
A
Ergun
D000293:Adolescent; D000294:Adolescent Behavior; D005163:Factor Analysis, Statistical; D005247:Feeding Behavior; D005638:Fruit; D006801:Humans; D011594:Psychometrics; D020377:Self Efficacy; D011795:Surveys and Questionnaires / Q000592:standards*; D014421:Turkey; D014675:Vegetables
Adolescent; Health focus: nutrition; Manuscript format: research; Outcome measure: behavioral; Prevention Research; Reliability; Research purpose: instrument development; Self-efficacy; Setting: school; Strategy: skill building/behavior change; Study design: content analysis; Target population age: youth; Target population circumstances: geographic location; Validity