Dogmatic religious and dogmatic atheists were, as one might expect, more likely to agree with prejudiced claims about "the others." But in both cases, the propensity to agree with prejudiced claims about the subjects had first been forced to reflect on their insecurity increased. Conclusions? People who have difficulty tolerating insecurity are more likely to become dogmatic atheists or dogmatic believers. And both groups respond to uncertainty by becoming more prejudiced.
Patrik Lindenfors, author, PhD and researcher in ecological biology at Stockholm University, presents an interesting study on dogmatism: Kossowska, M., Czernatowicz-Kukuczka, A. & Sekerdej, M. (2016). Many faces of dogmatism: Prejudice as a way of protecting certainty against value violators among dogmatic believers and atheists,British Journal of Psychology. Link to the research report. Lindenfors has published several books, including "God probably does not exist" (2008), which is aimed at young people, and "Secular humanism – reason, care, responsibility" (2015) that he has written with Christer Sturmark.