The consistency rule and the voice effect: the influence of expectations on procedural fairness judgements and performance

In procedural justice research it has frequently been found that allowing people an opportunity to voice their opinion enhances their judgements of the fairness of a decision-making procedure. The present study investigated how this voice effect is affected by the consistency over time rule, which dictates that, once people expect a certain procedure, deviation from the expected procedure will lead to a reduction in procedural fairness. Two experiments were conducted. In both experiments the independent variables manipulated were whether subjects were explicitly told to expect a voice procedure, were explicitly told to expect a no-voice procedure, or were told nothing about a subsequent procedure, and whether or not subjects subsequently received an opportunity to voice their opinion. The manipulations were induced by means of scenarios in Experiment 1, and by means of the Lind, Kanfer and Early (1990) paradigm in Experiment 2. In both experiments it was found that subjects who expected a voice procedure or who expected nothing judged receiving the voice procedure as more fair than receiving the no-voice procedure, but that subjects who expected a no-voice procedure judged receiving the voice procedure (inconsistency) as less fair than receiving the no-voice procedure (consistency). Furthermore, effects of the manipulated variables on subjects' task performance were found in Experiment 2.