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Development and validation of a quantitative snack and beverage food frequency questionnaire for adolescents
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The modified reasons for smoking scale : factorial structure, validity and reliability in pregnant smokers
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Are context-specific measures of parental-reported physical activity and sedentary behaviour associated with accelerometer data in 2–9-year-old European children?
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Psychosocial determinants and perceived environmental barriers as mediators of the effectiveness of a web-based tailored intervention promoting physical activity in adolescents: the HELENA Activ-O-Meter
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Moderators of the effectiveness of a web-based tailored intervention promoting physical activity in adolescents: the HELENA Activ-O-Meter
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Test-retest reliability and agreement between children's and parent's reports of a computerized food preferences tool
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Development and test-retest reliability of a nutrition knowledge questionnaire for primary-school children
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- Journal Article
- A1
- open access
Self-reported physical activity in European adolescents : results from the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) study
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Repeatability of maternal report on prenatal, perinatal and early postnatal factors: findings from the IDEFICS parental questionnaire
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The HELENA online food frequency questionnaire: reproducibility and comparison with four 24-h recalls in Belgian-Flemish adolescents