Followed 150 children over four years who were classified according to cluster analysis of teacher ratings into four types of social withdrawal: unsociable, passive-anxious, active-isolate, and sad-depressed. Found that unsociable children had elevated sociometric neglect rates, active-isolates had higher levels of rejection, and sad-depressed had elevated neglect and rejection rates; active-isolate children had the least competent social information-processing patterns. (KB)