Table 4 Cronbach’s alpha and ω coefficients for the overall and dimensions of the weight management nutrition knowledge questionnaire for Chinese adults (C-WMNKQ) (N = 590).

From: Development and validation testing of a weight management nutrition knowledge questionnaire for Chinese adults (C-WMNKQ)

Categories(Number of items)

Cronbach’s alpha

ω

Overall Cronbach’s alpha(39)

0.808

0.810

Energy density(16)

0.649

0.626

Portion size(14)

0.637

0.637

Variety of food affects food intake(2)

0.236

–

Reliable nutrition information source(2)

0.459

–

Alcohol intake and sugar sweetened beverages(5)

0.406

0.426

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