Research problems and issues concerning socialization are identified in an effort to aid member agencies of the Interagency Panel on Early Childhood Research and Development in establishing priorities in research. Discussed in Part I are: (1) the development of intergroup and intragroup attitudes and behaviors--stages in their development; the preschool child, the elementary school age and preadolescent child, the adolescent and young adult, ongoing research; (2) determinants of intergroup and intragroup attitudes and behaviors--family, school, socioeconomic status, status mobility, competition, frustration and aggression, cooperation and friendship, group and cultural values and norms, belief congruence, other cognitive factors, personality; and (3) changing intergroup and intragroup attitudes and behaviors--attitudes toward integration, contact and change, changes in group membership, and propaganda, informational and educational approaches to changing intergroup and intragroup attitudes and behaviors. Discussed in Part II are: (1) sources of family income and attitudes toward these sources; (2) attitudes towards work and barriers to employment among dependent populations; and (3) impacts on the family of various types of income support. The appendix for Part I concerns factors affecting opinion change through the communication media. The appendix for Part II contains summaries of relevant research. Conclusions and a list of references are included for each part. (KM)