Evans Daphne, Norman Paul
Department of Psychology, University of Wales, Swansea SA2 8PP, UK.
Health Educ Res. 2003 Jun;18(3):267-77. doi: 10.1093/her/cyf023.
The present paper reports an application of the Theory of Planned Behaviour (TPB) to the prediction of road-crossing intentions among adolescents. In addition, the sufficiency of the TPB was assessed by examining the additional predictive utility of moral norms, anticipated affect and self-identity. A sample of 1833 adolescents completed a questionnaire containing a scenario depicting a potentially hazardous road-crossing behaviour, followed by items measuring the TPB constructs, moral norms, anticipated affect and self-identity. Regression analyses revealed that the TPB was able to explain 25% of the variance in road-crossing intentions, over and above the influence of age and gender, with perceived behavioural control emerging as the strongest predictor. The additional variables were found to increase the predictive utility of the TPB. The results have a number of theoretical and practical implications. In particular, interventions should focus on perceptions of control in order to encourage safer road-crossing behaviour among adolescents.
本文报告了计划行为理论（TPB）在预测青少年过马路意图方面的应用。此外，通过检验道德规范、预期情感和自我认同的额外预测效用，评估了TPB的充分性。1833名青少年的样本完成了一份问卷，其中包含一个描述潜在危险过马路行为的情景，随后是测量TPB构念、道德规范、预期情感和自我认同的项目。回归分析表明，TPB能够解释在年龄和性别影响之外，过马路意图中25%的方差变异，其中感知行为控制是最强的预测因素。发现额外的变量增加了TPB的预测效用。研究结果具有若干理论和实践意义。特别是，干预措施应侧重于控制感的认知，以鼓励青少年采取更安全的过马路行为。
