Researchers in the fields of cognitive and language development have made less use of large-scale longitudinal designs and of person-centered approaches to data analysis than have researchers in the fields of social and personality development. It is argued that differences among domains of developmental psychology in the research methods employed…

The objective of this book is to examine the methods used in basic research on child development. Studies of replications and near-replications of commonly employed procedures of data collection and analysis are used. Evidence of consistency in research results is sought, thereby enabling the authors to assess the methodological adequacy of using…

Findings based on extended analyses of cognitive, familial, personality, and social-behavioral data from two previous research investigations are presented. Data for the main study, i.e., the present study, was collected principally by means of interviews. Findings of the principal study include the following: (1) Parental figures living in the…