Armitage C J, Conner M
Centre for Research in Social Attitudes, Department of Psychology, University of Sheffield, Western Bank, Sheffield S10 2TP, UK.
Br J Soc Psychol. 2001 Dec;40(Pt 4):471-99. doi: 10.1348/014466601164939.
The Theory of Planned Behaviour (TPB) has received considerable attention in the literature. The present study is a quantitative integration and review of that research. From a database of 185 independent studies published up to the end of 1997, the TPB accounted for 27% and 39% of the variance in behaviour and intention, respectively. The perceived behavioural control (PBC) construct accounted for significant amounts of variance in intention and behaviour, independent of theory of reasoned action variables. When behaviour measures were self-reports, the TPB accounted for 11% more of the variance in behaviour than when behaviour measures were objective or observed (R2s = .31 and .21, respectively). Attitude, subjective norm and PBC account for significantly more of the variance in individuals' desires than intentions or self-predictions, but intentions and self-predictions were better predictors of behaviour. The subjective norm construct is generally found to be a weak predictor of intentions. This is partly attributable to a combination of poor measurement and the need for expansion of the normative component. The discussion focuses on ways in which current TPB research can be taken forward in the light of the present review.
计划行为理论（TPB）在文献中受到了相当多的关注。本研究是对该研究的定量整合与综述。从截至1997年底发表的185项独立研究的数据库来看，TPB分别解释了行为和意图中27%和39%的方差变异。感知行为控制（PBC）这一构念独立于理性行动理论变量，在意图和行为中解释了大量的方差变异。当行为测量采用自我报告时，TPB在行为中解释的方差变异比行为测量采用客观或观察法时多11%（决定系数分别为0.31和0.21）。态度、主观规范和PBC在个体欲望中解释的方差变异显著多于在意图或自我预测中，但意图和自我预测是行为更好的预测指标。主观规范这一构念通常被发现是意图的一个较弱预测指标。这部分归因于测量不佳以及规范成分需要扩展的综合影响。讨论聚焦于根据本综述推进当前TPB研究的方法。
