Abstract
This study investigated the relationship between self‐disclosure and perceived understanding in the sibling relationship. Participants (N = 227.) completed a questionnaire based on their communication with their siblings. Participants reported on their self‐disclosure(intentionality, amount, positiveness, depth, and honesty) and their feelings of being understood by their siblings. The results showed that self‐disclosure was positively related to perceived understanding. This was especially true for the relationship between honesty of self‐disclosure and perceived understanding. Analyses involving sex of the individuals in the sibling dyad showed several differences. For men, besides honesty, the only other significant results were intentionality of self‐disclosure for brothers communicating with their sisters and positiveness of self‐disclosure for brothers communicating with their brothers. In contrast, intentionality, amount, positiveness, and honesty of self‐disclosure were all significantly related for women communicating with their brothers and their sisters.