The religiosity-moral self-image link was most strongly explained by personality traits and individual differences in prosociality/empathy, rather than a desirability bias; the link is minimally accounted for by impression management

Religion and moral self-image: The contributions of prosocial behavior, socially desirable responding, and personality. Sarah J. Ward, Laura A. King. Personality and Individual Differences, Volume 131, 1 September 2018, Pages 222–231. https://doi.org/10.1016/j.paid.2018.04.028

Highlights
•    The religiosity-moral self-image link was most strongly explained by prosocial traits.
•    This association was only minimally accounted for by impression management.
•    Even when under a fake lie detector, religious people still reported high moral self-image.

Abstract: Often, the high moral self-image held by religious people is viewed with skepticism. Three studies examined the contributions of socially desirable responding (SDR), personality traits, prosocial behavior, and individual differences in prosocial tendencies to the association between religiosity and moral self-image. In Studies 1 and 2 (N's = 346, 507), personality traits (agreeableness, conscientiousness) and individual differences in empathy/prosociality were the strongest explanatory variables for religiosity's association with moral self-image measures; SDR and prosocial behavior contributed more weakly to this association. In Study 3 (N = 180), the effect of a bogus pipeline manipulation on moral self-image was moderated by religiosity. Among the highly religious, moral self-image remained high even in the bogus pipeline condition. These studies show that the association between religiosity and moral self-image is most strongly explained by personality traits and individual differences in prosociality/empathy, rather than a desirability response bias.

Keywords: Religion; Morality; Moral self-image; Prosociality