Theory of planned behavior and adherence in chronic illness: a meta-analysis
Social-cognitive models such as the theory of planned behavior have demonstrated efficacy in predicting behavior, but few studies have examined the theory as a predictor of treatment adherence in chronic illness. We tested the efficacy of the theory for predicting adherence to treatment in chronic i...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Springer New York LLC
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/4544 |
| _version_ | 1848744545733312512 |
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| author | Rich, A. Brandes, K. Mullan, Barbara Hagger, Martin |
| author_facet | Rich, A. Brandes, K. Mullan, Barbara Hagger, Martin |
| author_sort | Rich, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Social-cognitive models such as the theory of planned behavior have demonstrated efficacy in predicting behavior, but few studies have examined the theory as a predictor of treatment adherence in chronic illness. We tested the efficacy of the theory for predicting adherence to treatment in chronic illness across multiple studies. A database search identified 27 studies, meeting inclusion criteria. Averaged intercorrelations among theory variables were computed corrected for sampling error using random-effects meta-analysis. Path-analysis using the meta-analytically derived correlations was used to test theory hypotheses and effects of moderators. The theory explained 33 and 9 % of the variance in intention and adherence behavior respectively. Theoretically consistent patterns of effects among the attitude, subjective norm, perceived behavioral control, intention and behavior constructs were found with small-to-medium effect sizes. Effect sizes were invariant across behavior and measurement type. Although results support theory predictions, effect sizes were small, particularly for the intention-behavior relationship. |
| first_indexed | 2025-11-14T06:03:10Z |
| format | Journal Article |
| id | curtin-20.500.11937-4544 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:03:10Z |
| publishDate | 2015 |
| publisher | Springer New York LLC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-45442019-02-19T05:34:53Z Theory of planned behavior and adherence in chronic illness: a meta-analysis Rich, A. Brandes, K. Mullan, Barbara Hagger, Martin Social-cognitive models such as the theory of planned behavior have demonstrated efficacy in predicting behavior, but few studies have examined the theory as a predictor of treatment adherence in chronic illness. We tested the efficacy of the theory for predicting adherence to treatment in chronic illness across multiple studies. A database search identified 27 studies, meeting inclusion criteria. Averaged intercorrelations among theory variables were computed corrected for sampling error using random-effects meta-analysis. Path-analysis using the meta-analytically derived correlations was used to test theory hypotheses and effects of moderators. The theory explained 33 and 9 % of the variance in intention and adherence behavior respectively. Theoretically consistent patterns of effects among the attitude, subjective norm, perceived behavioral control, intention and behavior constructs were found with small-to-medium effect sizes. Effect sizes were invariant across behavior and measurement type. Although results support theory predictions, effect sizes were small, particularly for the intention-behavior relationship. 2015 Journal Article http://hdl.handle.net/20.500.11937/4544 10.1007/s10865-015-9644-3 Springer New York LLC fulltext |
| spellingShingle | Rich, A. Brandes, K. Mullan, Barbara Hagger, Martin Theory of planned behavior and adherence in chronic illness: a meta-analysis |
| title | Theory of planned behavior and adherence in chronic illness: a meta-analysis |
| title_full | Theory of planned behavior and adherence in chronic illness: a meta-analysis |
| title_fullStr | Theory of planned behavior and adherence in chronic illness: a meta-analysis |
| title_full_unstemmed | Theory of planned behavior and adherence in chronic illness: a meta-analysis |
| title_short | Theory of planned behavior and adherence in chronic illness: a meta-analysis |
| title_sort | theory of planned behavior and adherence in chronic illness: a meta-analysis |
| url | http://hdl.handle.net/20.500.11937/4544 |