Guilt can be viewed in terms of constructiveness versus destructiveness: "constructive guilt" is focused on forgiving one's ethical lapses and changing one's behavior, while "destructive guilt" remains mired in self-loathing and does not emphasize learning from one's wrongdoings and moving ahead with life. A 2005 study in
Psychology of Religion found that Catholic participants demonstrated a higher level of constructive guilt reactions than other groups. Research on a link between Catholicism and guilt appears to be inconclusive. Guilt is an important factor in perpetuating
obsessive–compulsive disorder symptoms. Research is mixed on the possible connection between Catholicism and obsessive-compulsive symptoms. A 2002 study of 165 individuals by the
University of Parma found that religious individuals scored higher on measures of control of thoughts and overimportance of thoughts, and that these measures were associated with obsessive-compulsive symptoms only in the religious participants. A 1998 study noted a link between intrinsic religiosity and obsessive-compulsive cognitions/behaviors only among Catholic participants. However, a 1991 study from
Boston University found that no particular religion was more common among
OCD patients, and that OCD patients were no more religious than other subjects with anxiety. Religious obsessions were connected to the participants' religiosity, but sexual and aggressive symptoms were not. Greater religious devotion among OCD patients was correlated with increased guilt. A 1984 study in
American Behavioral Scientist analyzed interviews with participants from Catholic, Jewish, and Protestant backgrounds. The author reported that most participants "eagerly described an experience of guilt." In 2004,
Ulster University students participated in a study that found a slightly higher level of collective guilt among the Catholic students than the Protestant students. In 2008, researchers from the
University of California, Berkeley and from the
University of Notre Dame examined the concept of Catholic guilt among American teenagers. The authors found no evidence of Catholic guilt in this population, noting that Catholicism both caused and relieved less guilt than other religious traditions. The authors found no evidence that Catholic teenagers experience more guilt than non-Catholic ones. The authors did not find that more observant Catholics feel guiltier than less observant Catholics. The study noted no difference in the effect of guilt-inducing behaviors on Catholic versus non-Catholic participants. A 1988 study from
Hofstra University reported no difference in total guilt among religions, although religiosity itself was connected to guilt. ==Catholic viewpoint==