Reliability and validity of a fruit and vegetable self-efficacy instrument for secondary-school students in the Netherlands

Abstract Objective To develop a ‘fruit self-efficacy’ (FSE) instrument and a ‘vegetable self-efficacy’ (VSE) instrument for secondary-school students in the Netherlands and to test the reliability and validity of these instruments. Design Methodological research. Setting Seven secondary schools in the Netherlands. Subjects Students (11–19 years of age) completed the two instruments in the classroom ( n 466). Out of the original subject group, 106 students completed the instruments a second time. Results The relevance of the twenty-two items of the two developed instruments was evaluated on two... Mehr ...