Reliability and Validity of the Self- and Interviewer-Administered Versions of the Global Physical Activity Questionnaire (GPAQ)

• Anne H. Y. Chu ,

  * E-mail: anne.chu@u.nus.edu

  Affiliation Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore

  ⨯
• Sheryl H. X. Ng,

  Affiliation Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore

  ⨯
• David Koh,

  Affiliations Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore, PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Brunei Darussalam

  ⨯
• Falk Müller-Riemenschneider

  Affiliations Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore, Institute of Social Medicine, Epidemiology and Health Economics, Charité University Medical Centre Berlin, Berlin, Germany

  ⨯