An extended report of findings from CTUR’s CAPTURE24 project has now been published in the Journal Sociological Methodology

This study compares self-report diary records of specific days with objective records of the same day constructed from  wearable camera and accelerometer evidence. Results strongly supports the use of diary methodology at both the aggregate (sample) and individual levels. It provides evidence that time-use data could be used to complement physical activity questionnaires for providing population-level estimates of physical activity. It also implies new opportunities for investigating techniques for calibrating metabolic equivalent of task (MET) attributions to daily activities using large-scale, population-representative time-use diary studies.    DOI: 10.1177/0081175019884591