Are constructs of the transtheoretical model for physical activity measured equivalently between sexes, age groups, and ethnicities?

被引:33
作者
Paxton, Raheem J. [2 ]
Nigg, Claudio R. [1 ]
Motl, Robert W. [3 ]
McGee, Kelly
McCurdy, Dana
Matthai, Caroline Horwath [4 ]
Dishman, Rod K. [5 ]
机构
[1] Univ Hawaii Manoa, John A Burns Sch Med, Dept Publ Hlth Sci, Honolulu, HI 96822 USA
[2] Canc Res Ctr Hawaii, Honolulu, HI 96813 USA
[3] Univ Illinois, Urbana, IL 61801 USA
[4] Univ Otago, Dunedin, New Zealand
[5] Univ Georgia, Athens, GA 30602 USA
关键词
decisional balance; measurement equivalence/invariance; processes of change; self-efficacy; temptations;
D O I
10.1007/s12160-008-9035-x
中图分类号
B84 [心理学];
学科分类号
04 [教育学]; 0402 [心理学];
摘要
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.
引用
收藏
页码:308 / 318
页数:11
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