Response conversion for improving comparability of international physical activity data

Background: Many questionnaires for measuring physical activity (PA) exist. This complicates the comparison of outcomes. Methods: In 8 European countries, PA was measured in random samples of 600 persons, using the IPAQ as a 'bridge' to historical sets of country-specific questions. We assume that a unidimensional scale of PA ability exists on...

Seasonal variation in the diagnosis of type 1 diabetes

Computerized adaptive testing for measuring development of young children

Developmental indicators that are used for routine measurement in The Netherlands are usually chosen to optimally identify delayed children. Measurements on the majority of children without problems are therefore quite imprecise. This study explores the use of computerized adaptive testing (CAT) to monitor the development of young children. CAT...

An interval scale for development of children aged 0-2 years

Measurement of development is often less precise than that of height and weight. Developmental scores are typically based on passing one or more developmental markers, but do not have interval scale so calculating differences between scores can be nonsensical. Age-specific standardized scores are sometimes used, but fail to have a common metric...

Bewegen in Nederland 2000-2004 (OBiN)

Dit is een samenvatting van de eerste resultaten van de Monitor Bewegen en Gezondheid, over de periode 2000-2004, waarin trends met betrekking tot bewegen, overgewicht en de determinanten hiervan worden bestudeerd. De monitor bewegen en gezondheid is geïntegreerd in monitor ongevallen en bewegen in Nederland (OBiN). Deze monitor wordt...