Nutrient profiling models classify the healthiness of foods based on their nutritional composition and provide the science that underlies nutrition signposting schemes. The two objectives were to ...

Content validity assessment lies at the heart of developing sound psychometric instruments, ensuring that each item faithfully represents the full scope of the construct under study. This process ...

Interdependency of construct, face, and predictive validity. Construct, face, and predictive validity are highly interdependent. Depending on the available information, a model system can be built ...