Open AccessReliability of the digital and printed format of a modified version of the International Physical Activity Questionnaire in college students
Author(s) -
Isabel Cristiuñez,
Leonardo Perilla,
Diana Mercedes Villarreal,
Gustavo Andrés Gómez
Publication year - 2015
Publication title -
revista facultad de ciencias de la salud udes
Language(s) - English
Resource type - Journals
ISSN - 2422-1074
DOI - 10.20320/rfcsudes.v2i2.59
Subject(s) - intraclass correlation , reliability (semiconductor) , test (biology) , kappa , cohen's kappa , presentation (obstetrics) , multimedia , computer science , medical physics , psychology , reliability engineering , physical therapy , medicine , statistics , mathematics , reproducibility , engineering , surgery , paleontology , power (physics) , physics , geometry , quantum mechanics , biology
Background: Programs that promote regular physical activity (PA) require reliable PA measurements methods to establish their effectiveness. Objective: To determine the test-retest reliability of digital and print format of International Physical Activity Questionnaire and to establish the reliability between both presentation formats. Methods: The digital and print format questionnaires were self-administered twice to a sample of 76 college students (20.6 ± 2.8 years), 4-7 days later they completed the formats again. Test-retest and between formats reliability was analyzed by the intraclass correlation coefficient (ICC) and weighted Kappa index (wK). Agreement between measurements was established by Bland-Altman method (B&A). Results: Test-retest reliability with ICC was excellent for both formats (digital: 0.77, print: 0.82) and acceptable by wK (digital: 0.61, print: 0.71). Agreement between measurements for both formats was low for PA vigorous and moderate categories. Between formats, reliability was excellent for first and second measurement. Conclusions: Although ICC confirmed excellent test-retest reliability, B&A showed a low level of agreement between measurements. Between formats reliability was excellent, and both formats provide similar information.