Mediating variables in a transtheoretical model dietary intervention program.
Mediating variables in a transtheoretical model dietary intervention program.
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DOI：
10.1177/1090198109334897
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发表时间：
2010-10
期刊：
影响因子：
--
通讯作者：
Prochaska JO
中科院分区：
文献类型：
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作者：
Di Noia J;Prochaska JO
本研究确定了中介的跨理论模型（TTM）干预，以增加水果和蔬菜的消费在经济上处于不利地位的非洲裔美国青少年（N = 549）。单和多中介模型被用来确定是否利弊，自我效能，和阶段的变化满足四个必要的结论，建立中介干预对青少年的饮食行为的影响。所有四个结论都是满意的变化和优点的单中介模型和多中介模型的阶段。在单中介模型中，阶段介导了31%的干预效果，专业人员介导了7%的干预效果。在多中介模型中，阶段占干预效果的72%。研究结果增加了有限的数据，在TTM饮食干预计划的中介变量。在得出结论，改变的阶段和优点是TTM干预计划效果的一致介质之前，需要进行复制研究。
This study identified mediators of a Transtheoretical Model (TTM) intervention to increase fruit and vegetable consumption among economically disadvantaged African American adolescents (N = 549). Single- and multiple-mediator models were used to determine whether pros, cons, self-efficacy, and stages of change satisfied four conclusions necessary for establishing mediation of intervention effects on youths' dietary behavior. All four conclusions were satisfied for stages of change and pros in the single-mediator models and for stages in the multiple-mediator model. Stages mediated 31% of the intervention effect, and pros mediated 7% of the intervention effect in the single-mediator models. In the multiple-mediator model, stages accounted for 72% of the intervention effect. Findings add to the limited data on mediating variables in TTM dietary intervention programs. Replication studies are needed before it can be concluded that stages of change and pros are consistent mediators of TTM intervention program effects.