National Health Survey data of 12- to 17-year-olds were used to determine links between dating behavior and level of sexual maturation as well as age. Analyses indicated that individual levels of sexual maturation add very little to the explained variance in dating after age has been taken into account. (Author/DB)

Addresses questions about infant perceptual ability and the possibility of its decline as a function of development in the absence of specific experience. Compares English-speaking adults, Hindi-speaking adults, and 7-month-old infants on their ability to discriminate two pairs of natural Hindi (non-English) speech contrasts. (Author/RH)

Preschool children were asked to choose the figure most resembling a real man from three figures drawn according to formulas used by children to depict humans. Results suggest development of drawing systems influences children's conceptions about objects or events. (Author/DB)

Examines sex differences in vocalizations and play behaviors displayed toward an infant by preschoolers, preadolescents, and adults. Preschoolers showed less interaction than older subjects. Males talked and played less with the baby than did females at all ages; however, among adult subjects, no sex-role effects were found. (Author/RH)

This study of mother-infant pairs investigates sex differences and age differences (infants of 6, 9, and 12 months of age) in mother and infant initiations of interactions and responses to the other's initiations. (SS)

Subjects were trained against their initial dimensional preference in a two-dimensional simultaneous discrimination learning task. (RH)

Among elementary, junior high, and college students, intelligent retrieval methods for recalling 20 letters of the alphabet consisted either of mentally proceeding through the alphabet from the onset and writing down each previously written letter as encountered and recognized, or else first rote recalling some letters and then switching to the…

A study dealing with the sport interests of adolescents reveals significant relationships between different passive sport interests, and a relationship of active and passive sport interests which decreases with age and depends to some degree on social background. The study upholds previously determined relationships between sex and sport activity.…

Tests the hypotheses that superiority of semantic over phonetic encoding increases with age, and that the superiority of multiple-dimension encoding over single-dimension encoding emerges with age. Elementary, secondary, and graduate students judged words on various dimensions of the semantic differential in an incidental memory task. (Author/SS)

The effects of child deafness on mother-child interaction were investigated by observing mother-child dyads in free-play situations. Subjects were six deaf child/hearing mother pairs and six normal hearing pairs. All children were between 13.2 and 29.2 months of age. (Author/MP)

The influences of home and school environment on teenage smoking were assessed according to sex differences, age differences, influence of adults, socioeconomic status, and coeducation v same sex grouping. (Author/DB)

Stimulating work, interpersonal satisfaction, economic security, responsible autonomy, comfortable existence, and esthetic concerns provide a summary of clients' work motivation at a higher level of generality. They are independent of age, education, and intelligence and can be hand-scored. (Author)

Education and income had a strong impact on the job satisfaction-life satisfaction relationship. Occupation had a modest effect; self-employment had a stronger one. Age and job longevity had a strong curvilinear effect. These relationships become more relevant over time. (Author/JAC)

Education, not age per se, is related to conservation ability during the adult years. Age differences should not be interpreted as age changes without using the more appropriate designs which separate age and cohort effects. Results emphasize the relationship between education and cognitive abilities among the elderly. (Author)

Very close age spacing was an obstacle to high academic performance for later borns. In family relations and self-esteem, first borns scored better and performed in school as well as their potentially much more able younger siblings, regardless of age spacing. (Author)