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Fig. 1 | Nutrition Journal

Fig. 1

From: Development and application of the Meal and Snack Assessment (MESA) quality scale for children and adolescents using item response theory

Fig. 1

Study design flowchart. The Meal and Snack Assessment (MESA) Quality Scale development was guided by recommendations for psychometric studies, a science that studies the measurement of non-directly observable phenomena (latent traits): Latent trait definition (1); Item generation (2); Dimensionality analysis (3); Estimation of item parameters (4); Linear transformation of parameters (5); Scale levels definition (6); Assessment of scale's validity (7), and reliability (8); Estimation of the latent trait of the individuals in the sample (9)

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Nutrition Journal

ISSN: 1475-2891

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