Asked 127 clinic family triads (with varying diagnoses of the tested child) to make up group TAT stories, and the total number of sec. of speech of each family member was correlated with that of the other 2 family members. In contradiction to earlier findings of J. Becker and J. McArdle (see 42:1), these results indicate that in this interactional situation members of abnormal families resemble each other more than do members of normal families. This is particularly true of the similarity between father and child, which was much greater in abnormal families. (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1969 American Psychological Association.