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Godinho, C. A., Alvarez, M.-J., Lima, M. L. & Schwarzer, R. (2015). Health messages to promote fruit and vegetable consumption at different stages: a match-mismatch design. Psychology and Health. 30 (12), 1410-1432

C. I. Godinho et al.,  "Health messages to promote fruit and vegetable consumption at different stages: a match-mismatch design", in Psychology and Health, vol. 30, no. 12, pp. 1410-1432, 2015

@article{godinho2015_1716140673241,
	author = "Godinho, C. A. and Alvarez, M.-J. and Lima, M. L. and Schwarzer, R.",
	title = "Health messages to promote fruit and vegetable consumption at different stages: a match-mismatch design",
	journal = "Psychology and Health",
	year = "2015",
	volume = "30",
	number = "12",
	doi = "10.1080/08870446.2015.1054827",
	pages = "1410-1432",
	url = "http://www.tandfonline.com/doi/abs/10.1080/08870446.2015.1054827"
}

TY  - JOUR
TI  - Health messages to promote fruit and vegetable consumption at different stages: a match-mismatch design
T2  - Psychology and Health
VL  - 30
IS  - 12
AU  - Godinho, C. A.
AU  - Alvarez, M.-J.
AU  - Lima, M. L.
AU  - Schwarzer, R.
PY  - 2015
SP  - 1410-1432
SN  - 0887-0446
DO  - 10.1080/08870446.2015.1054827
UR  - http://www.tandfonline.com/doi/abs/10.1080/08870446.2015.1054827
AB  - Objective: To examine the effectiveness of matching health messages promoting fruit and vegetable intake to the Health Action Process Approach stages of change.Design: In a randomised controlled trial, 205 undergraduate students (non-intenders n=123; intenders n=82) were exposed to one of three health messages, targeted at non-intenders, intenders and controls.Main outcome measures: Three longitudinal assessments of stage, fruit and vegetable intake, and social-cognitive determinants were obtained.Results: Stage-specific effects of the interventions were confirmed. For self-efficacy, a stage by health message crossover interaction emerged, with both non-intenders and intenders in the matched conditions scoring higher in self-efficacy. Furthermore, in line with predictions, non-intenders in the matched condition showed higher risk perception, outcome expectancies, intention, and stage progression immediately after message exposure, and lower levels of action planning and coping planning a week later in the mismatched condition, but for these outcomes no differences across conditions were obtained among intenders. Multiple mediation analyses confirmed the facilitating role of self-efficacy and behavioural intention among non-intenders.Conclusions: Stages should be considered when designing health messages, although more interactive interventions for intenders and extended measurement time frames may be required.
ER  -