作者
Valentina Carfora, Daniela Caso, Mark Conner
发表日期
2016/11
期刊
British Journal of Health Psychology
卷号
21
期号
4
页码范围
937-955
简介
Objective
The present research aimed to test the efficacy of affective and instrumental text messages compared with a no‐message control as a strategy to increase fruit and vegetable intake (FVI) in adolescents.
Design
A randomized controlled trial was used test impact of different text messages compared with no message on FVI over a 2‐week period.
Method
A total of 1,065 adolescents (14–19 years) from a high school of the South of Italy completed the baseline questionnaire and were randomly allocated to one of three conditions: instrumental messages (N = 238), affective messages (N = 300), and no messages (N = 521). Students in the message conditions received one message each day over a 2‐week period. The messages targeted affective (affective benefits) or instrumental (instrumental benefits) information about FVI. Self‐reported FVI at 2 weeks was the key dependent variable. Analyses were …
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V Carfora, D Caso, M Conner - British Journal of Health Psychology, 2016