This study examined the relationship between maternal personality factors, as measured by the Minnesota Multiphasic Personality Inventory (MMPI) and the development of the attachment relationship. The subjects were 45 firstborn 12-month-olds and their mothers. The sample was preponderantly white, middle class, and married. Mothers completed the…

The Infant Behavior Record (IBR) assessed the temperament of 95 nonadoptive and 80 adoptive sibling pairs at 1 and 2 years of age. Data from this and an earlier similar study of identical and fraternal twins yielded evidence for genetic influence for IBR factors of extraversion, activity, and task orientation. (BC)

This study examines infant temperament (inhibited and uninhibited styles) as a predictor of behavior in the kindergarten classroom. Thirty-one kindergarten children were observed in their classrooms for approximately 1.5 hours on each of four occasions between September and January. Fourteen children (8 girls, 6 boys) had been classified as high…