Are Constructs of the Transtheoretical Model for Physical Activity Measured Equivalently Between Sexes, Age Groups, and Ethnicities?

Paxton, Raheem J.; Nigg, Claudio R; Motl, Robert W.; McGee, Kelly; McCurdy, Dana; Matthai, Caroline Horwath; Dishman, Rod K. (2008). Are Constructs of the Transtheoretical Model for Physical Activity Measured Equivalently Between Sexes, Age Groups, and Ethnicities? Annals of behavioral medicine, 35(3), pp. 308-318. Springer 10.1007/s12160-008-9035-x

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Background/purpose: Identifying mediators of physical activity change requires measurement instruments that are reliable, valid, and generalizable to multiple populations. Despite continued application of the transtheoretical model (TTM) to the study of physical activity, the structural components of the TTM measurement instruments have been understudied in diverse populations.

Methods: A multiethnic sample (N = 700, M (age) = 47, 63% women, 38% Caucasian) of participants living in Hawaii completed TTM measures. The factor validity and measurement equivalence/invariance (ME/I) of decisional balance, barrier self-efficacy, temptations, and processes of change instruments were explored between men, women, age groups, and ethnicities.

Results/conclusions: Measurement models of barrier self-efficacy and revised models of temptations and processes of change demonstrated sufficient evidence for ME/I among all subgroups. A revised model of decisional balance demonstrated sufficient evidence for ME/I between genders and among ethnicities, but not among age groups. Future research should examine the stability of these constructs across time.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Sport Science (ISPW)

UniBE Contributor:

Nigg, Claudio Renato

Subjects:

700 Arts > 790 Sports, games & entertainment

ISSN:

0883-6612

Publisher:

Springer

Language:

English

Submitter:

Claudio Renato Nigg

Date Deposited:

06 Mar 2024 15:31

Last Modified:

01 Jul 2024 16:16

Publisher DOI:

10.1007/s12160-008-9035-x

PubMed ID:

18607667

BORIS DOI:

10.48350/193375

URI:

https://boris.unibe.ch/id/eprint/193375

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