Although it is known that men with Klinefelter syndrome have cognitive and behavioral problems, knowledge about psychological treatments is limited. This study describes the effect of a...Show moreAlthough it is known that men with Klinefelter syndrome have cognitive and behavioral problems, knowledge about psychological treatments is limited. This study describes the effect of a Selfmanagement training on social competence, social interaction and self-understanding. Scores of 23 Klinefelter men on the Social Skills Rating System, the Social Behavior Scale and the Bermond-Vorst Alexithymia Questionnaire were compared to 41 control men. Both groups were compared on the pretest. The Klinefelter group has had a Selfmanagement training and a posttest after six months. Independent t-test and repeated measures were computed. The Klinefelter group showed significantly more impairments in social competence, social interactions and self-understanding than the control group on the pretest. No significant improvements on social competence, social interaction and self-understanding were found on the posttest for the Klinefelter men, so we looked at the means of the subtest. The means of the repeated measures indicate an improvement in averages after the training for social competence, frequency of social interactions and the emotion dimension of self-understanding. It turned out that the average excitement during social interaction has decreased considerable on the intervention period. It seems that the Selfmanagement training has a positive effect on the Klinefelter men. In the future research with a larger number of Klinefelter men is recommended as well as research on the effects at the long term. Because this is a first psychological training for men with Klinefelter, the small improvement found in the mean is already valuable and an open door for further research.Show less