The Multimedia activity recall for children and adolescents (MARCA): development and evaluation

• Main Authors: Olds Tim S (Author), Ridley Kate (Author), Hill Alison (Author)
• Formato: Livro
• Publicado em: BMC, 2006-05-01T00:00:00Z.
• Assuntos: article
• Acesso em linha: Connect to this object online.

<p>Abstract</p> <p>Background</p> <p>Self-report recall questionnaires are commonly used to measure physical activity, energy expenditure and time use in children and adolescents. However, self-report questionnaires show low to moderate validity, mainly due to inaccurac...