All variables were assessed through self-report measures leading to an
overestimation of common variance and to possible distortion due to social
desirability. Studies including observational data on social behavior are
needed to rule out this alternative explanation. Furthermore, some of the
measures we used like moral disengagement, attitudes and normative beliefs
have been adapted for this study and so they still need additional empirical
validation. Also, the moral disengagement scale, although internally consistent,
only explained a small proportion of the variance of entire scale.