... the highest accuracy, while lunch and dinner showed slightly wider limits. Findings support digital photography as a valid and efficient alternative to direct weighing for monitoring solid-food plate waste, with greatest accuracy at breakfast. Originality/value Digital photography offers practical...

... programs require psychometric assessment for face validity. Survey items related to cooking experience (CE), SE, and attitude used in a school-based cooking program were assessed for face validity. The paper aims to discuss these issues. Design/methodology/approach Cognitive interviews were conducted...