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Home / American Journal of Health Behavior, Number 5, September 2015

Evaluations of Validity and Reliability of a Transtheoretical Model for Sedentary Behavior among College Students

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Objective: To evaluate the measurement properties of the Transtheoretical Model (TTM) questionnaire for sedentary behaviors among college students and to examine the validity and reliability of the developed TTM questionnaire. Methods: Overall, 225 college students were recruited. For the 2-week test-retest reliability, a random sub-sample (N = 108) of the participants was used. Results: Statistically significant differences were found across the stages on the tests of concurrent (χ2 = 25.0, p < .001) and construct (p < .01) validity. In addition, the internal consistency reliability (Cronbach alphas from .73 to .88) and test-retest reliability (intra-class correlation coefficients ranging from .80 to .94) were high for the questionnaires. Conclusions: These results demonstrate high validity and reliability of the TTM questionnaire when applied to sedentary behavior.

Keywords: RELIABILITY; SEDENTARY; TTM; VALIDITY

Document Type: Research Article

Affiliations: 1: Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA. [email protected] 2: Epidemiology, Human Genetics, and Environmental Sciences, University of Texas School of Public Health, Austin, TX, USA

Publication date: 01 September 2015

More about this publication?

  • The American Journal of Health Behavior seeks to improve the quality of life through multidisciplinary health efforts in fostering a better understanding of the multidimensional nature of both individuals and social systems as they relate to health behaviors.

    The Journal aims to provide a comprehensive understanding of the impact of personal attributes, personality characteristics, behavior patterns, social structure, and processes on health maintenance, health restoration, and health improvement; to disseminate knowledge of holistic, multidisciplinary approaches to designing and implementing effective health programs; and to showcase health behavior analysis skills that have been proven to affect health improvement and recovery.

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