@article{CrutzenGoeritz2011,
  author    = {Crutzen, Rik and G{\"o}ritz, Anja S.},
  title     = {Does social desirability compromise self-reports of physical activity in web-based research?},
  series = {International Journal of Behavioral Nutrition and Physical Activity},
  volume    = {8},
  journal   = {International Journal of Behavioral Nutrition and Physical Activity},
  number    = {31},
  doi       = {10.1186/1479-5868-8-31},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-135156},
  pages     = {1-4},
  year      = {2011},
  abstract  = {Background: This study investigated the relation between social desirability and self-reported physical activity in web-based research. Findings: A longitudinal study (N = 5,495, 54\% women) was conducted on a representative sample of the Dutch population using the Marlowe-Crowne Scale as social desirability measure and the short form of the International Physical Activity Questionnaire. Social desirability was not associated with self-reported physical activity (in MET-minutes/week), nor with its sub-behaviors (i.e., walking, moderate-intensity activity, vigorous-intensity activity, and sedentary behavior). Socio-demographics (i.e., age, sex, income, and education) did not moderate the effect of social desirability on self-reported physical activity and its sub-behaviors. Conclusions: This study does not throw doubt on the usefulness of the Internet as a medium to collect self-reports on physical activity.},
  language  = {en}
}