Abstract (eng)
The effect of an increase in procedural justice on attitudes and behaviors useful for an organization has been frequently found in research, but with contextual limitations. Building on the group-value model, the effect of social identity was assumed to moderate the effect of procedural justice on affective, continuance and normative commitment (Allen & Meyer, 1990) as well as on extra-role behaviors. A questionnaire was filled out by 220 people, mostly students between 20 and 35 years old and working in various kinds of organizations. As assumed at low identification levels, no conditional effect on continuance commitment was found, but when identification was average and above, although contrary to the hypothesized direction: procedural justice did reduce the continuance commitment. Also contrary to the assumed direction was the conditional effect of procedural justice on extra-role behavior and normative commitment, which were found only for average and less than average values of identification with the organization. No effect of the moderator was found for the affective commitment. To maintain the achieved power, the Influences of the sociodemografic variables were calculated separately in exploratory analyses. It yielded almost similar results. The moderator effect was not significant anymore for the continuance commitment, although the Johnson-Neyman region of significance was still found and almost identical. All moderator effects were of small magnitude. Implications of the findings are discussed.