The study we conducted investigated the effects of Conscientiousness and Openness on two religiosity scales: Self-Reported Religiosity and the Tobacyk and Milford (1983) Religiosity Subscale (T&M). Conscientiousness and Openness were hypothesized to have an effect on religiosity. Despite finding a strong correlation between the two religiosity scales, differences could be noted with reference to the sensitivity of the T&M Subscale to Openness and the presence of a reliable interaction. Although there was an interaction between Conscientiousness and Openness for both scales, it was marginal with the Self-report Religiosity scale. We concluded that Open people who are Conscientious might not have produced as large of a reliable difference in scores as Closed people who are Conscientious due to traditional religious partiality in the T&M Subscale.