[5] For the 39-item trait version (FCQ-T), respondents indicate how frequently each statement is true for them in general on a six-point scale with 1 = never/not applicable, 2 = rarely, 3 = sometimes, 4 = often, 5 = usually, and 6 = always.
[1] The FCQ-T also has high test-retest reliability which is, expectedly, lower for the FCQ-S as a state-dependent measure.
[6] Factorial validity has received limited support as factor structure of the FCQs could not be replicated in several studies.
Discriminant validity of the FCQ-T has been supported in that scores are largely unaffected by momentary states such as hunger and satiety.
Discriminant validity of the FCQ-S has been supported in that scores are largely unrelated to trait-like eating behaviors and body weight.
[1] The FCQ-T has been translated into several other languages such as Spanish,[7] German,[8] Italian,[9] Portuguese,[10][11] Persian,[12] Turkish,[citation needed] and Chinese.
[13] The FCQ-S has also been translated into several other languages such as Spanish,[7] German,[8] Italian,[14] Portuguese,[10][11] and Korean[15] Several abbreviated or otherwise modified versions of the FCQs have been developed.