Case Philippa, Sparks Paul, Pavey Louisa
University of Sussex, East Sussex, UK.
Kingston University, London, UK.
Br J Soc Psychol. 2016 Mar;55(1):109-25. doi: 10.1111/bjso.12115. Epub 2015 Apr 28.
In contrast to the cost-benefit, utility-based approach to decision-making implicit in models such as the theory of planned behaviour (TPB), the logic of appropriateness (March, 1994. A Primer on Decision Making: How decisions happen. New York, NY: The Free Press) describes decision-making in terms of heuristic decision rules that involve matching identities to situations. This research is the first to apply the logic of appropriateness in conjunction with the theoretical structure of the TPB and assessed whether a measure of identity appropriateness might independently predict adults' intentions to engage in binge drinking. In Study 1, participants (N = 197) completed questionnaires assessing attitudes, subjective norm, perceived behavioural control, past behaviour, and identity appropriateness in relation to binge drinking. Path analysis revealed an independent predictive effect of identity appropriateness on intentions in addition to an indirect effect via attitudes. In Study 2 (N = 179), a prospective measure of behaviour was included in a similar study: Identity appropriateness again predicted intentions independently of the extended TPB predictors. It was again also found to be a strong predictor of attitudes. We suggest that the notion of identity appropriateness may assist in explaining the capacity of measures of self-identity to predict people's behavioural intentions.
与计划行为理论（TPB）等模型中隐含的基于成本效益和效用的决策方法不同，适当性逻辑（March，1994年。《决策入门：决策是如何发生的》。纽约，纽约州：自由出版社）从启发式决策规则的角度描述决策，这些规则涉及将身份与情境相匹配。本研究首次将适当性逻辑与TPB的理论结构结合应用，并评估身份适当性的衡量指标是否能独立预测成年人的暴饮意图。在研究1中，参与者（N = 197）完成了问卷，评估与暴饮相关的态度、主观规范、感知行为控制、过去行为和身份适当性。路径分析显示，身份适当性除了通过态度产生间接影响外，还对意图有独立的预测作用。在研究2（N = 179）中，一项类似的研究纳入了行为的前瞻性衡量指标：身份适当性再次独立于扩展的TPB预测指标预测意图。研究还再次发现它是态度的有力预测指标。我们认为，身份适当性的概念可能有助于解释自我身份衡量指标预测人们行为意图的能力。
