Application of the transtheoretical model to fruit and vegetable consumption among economically disadvantaged African-American adolescents: Preliminary findings
Application of the transtheoretical model to fruit and vegetable consumption among economically disadvantaged African-American adolescents: Preliminary findings
复制标题
DOI：
10.4278/0890-1171-20.5.342
复制
发表时间：
2006-05-01
影响因子：
2.7
通讯作者：
Contento, Isobel R.
中科院分区：
文献类型：
--
作者：
Di Noia, Jennifer;Schinke, Steven P.;Contento, Isobel R.
目的.研究跨理论模型（TTM）在经济弱势的非裔美国人中水果和蔬菜消费的应用。量表测量决策平衡，情境自我效能感，水果和蔬菜消费的变化过程，并与57个经济上处于不利地位的非洲裔美国青少年进行了预测试。对262名参与者的单独样本进行了评估变化阶段，人口统计学变量以及水果和蔬菜消费的量表和措施。独立样本的t检验和valvalidity的分析被用来检查TTM变量和水果和蔬菜消费的变化阶段的差异。决策平衡和变化过程的两个因素的解决方案和三个因素的解决方案，情境自我效能提供了最适合的数据。量表的可靠性系数从0.77（实验变化过程）到0.91（赞成）不等。在行动维持阶段的参与者证明更高的优点，自我效能和水果和蔬菜的消费和显着较低的缺点比参与者在沉思前和沉思准备阶段。此外，在行动维持阶段的参与者更频繁地使用的变化过程比那些在preconstipulation-沉思-准备阶段。在这些阶段内的经验和行为过程的使用并没有显着差异，作为position. Discussion。观察到的TTM变量和水果和蔬菜消费的变化阶段在这个样本的经济上处于不利地位的非洲裔美国人，青少年的差异是一致的。与理论和以前的应用模型的水果和蔬菜消费的成年人。通过重复研究，TTM可能适合设计干预措施，以增加这一人群中的水果和蔬菜消费。
Purpose. To examine the application of the transtheoretical model (TTM) to fruit and vegetable consumption among economically disadvantaged African-American adolescents.Methods. Scales for measuring decisional balance, situational self-efficacy, and processes of change for fruit and vegetable consumption were developed and pretested with 57 economically disadvantaged African-American adolescents. The scales and measures for assessing stages of change, demographic variables, and fruit and vegetable consumption were administered to a separate sample of 262 participants. t-tests for independent samples and analysis of valiance were used to examine differences in TTM variables and fruit and vegetable consumption across stages of change.Results. Two-factor solutions for decisional balance and processes of change and a threes factor solution, for situational self-efficacy provided the best fit to the data. Alpha coefficients of reliability for the scales ranged from .77 (experimental change processes) to .91 (pros). Participants in action-maintenance stages evidenced higher pros, self-efficacy and fruit and vegetable consumption and significantly lower cons than did participants in precontemplation and contemplation-preparation stages. Also, participants in action-maintenance stages used processes of change more frequently than did those in precontemplation-contemplation-preparation stages. The use of experiential and behavioral processes within these stages did not differ significantly, as posited.Discussion. Observed differences in TTM variables and fruit and vegetable consumption by stage of change in this sample of economically disadvantaged African-American, adolescents were consistent. with theory and previous applications of the model to fruit and vegetable consumption in adults. With replication studies, the TTM may be appropriate for designing interventions to increase fruit and vegetable consumption among this population.