title: Is social desirability associated with self-reported physical activity?
abstract: BACKGROUND
  Physical activity has been considered to be a socially desirable behavior that might be overreported because of a social desirability bias. This study involved an examination of the possible influence of social desirability on self-report measures of physical activity.
  
  
  METHODS
  Participants were male and female college students (N = 782) who completed the Lie scale of the Eysenck Personality Questionnaire (L-scale), Marlowe-Crowne Social Desirability Scale (SDS), Godin Leisure-Time Exercise Questionnaire (GLTEQ), and Stanford Usual Activity Questionnaire.
  
  
  RESULTS
  Scores from the Lie scale were not significantly correlated with scores from either the Godin Leisure-Time Exercise Questionnaire or the Stanford Usual Activity Questionnaire. With the Social Desirability Scale, there were statistically significant, but weak correlations with scores from the Godin Leisure-Time Exercise Questionnaire and the Stanford Usual Activity Questionnaire. There was no influence of the Lie scale and Social Desirability Scale on the magnitude of the correlations between scores from the two measures of physical activity.
  
  
  CONCLUSIONS
  This study provides minimal evidence of an influence of social desirability on scores from two self-report instruments for measuring physical activity in young adults.
authors.affiliation: Department of Kinesiology, University of Illinois at Urbana-Champaign, 906 South Goodwin Avenue, Urbana, IL 61801-3895, USA. robmotl@uiuc.edu
authors.forename: Robert W
authors.initials: RW
authors.lastname: Motl
authors.forename: Edward
authors.initials: E
authors.lastname: McAuley
authors.forename: Christine
authors.initials: C
authors.lastname: DiStefano
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D001294:Attitude to Health; D015982:Bias; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008913:Minority Groups / Q000706:statistics & numerical data; D010555:Personality Inventory / Q000706:statistics & numerical data*; D010809:Physical Fitness / Q000502:physiology / Q000523:psychology*; D011336:Probability; D011594:Psychometrics; D012650:Self Disclosure; D012928:Social Desirability; D011795:Surveys and Questionnaires; D014481:United States; D044465:White People / Q000706:statistics & numerical data