Hypothesis sampling systems among preoperational and concrete operational kindergarten children

Groups of 60 preoperational and 60 concrete operational kindergarten children received stimulus differentiation training either with feedback (experimental groups) or without (control groups), prior to a series of discrimination-learning problems in which a blank-trial probe, used to detect the child's hypothesis, followed each feedback trial. The concrete operational children manifested significantly better performances than the preoperational on seven of eight dependent measures examined. There were also significant differences in favor of the experimental groups on three dependent measures. While the results were generally consistent with predictions derived from Piagetian stage theory, it was suggested that this theory must be elaborated to include a perspective derived from conventional developmental learning theory in order to adequately account for these and other data.     

Value changes in third generation Japanese Americans

Summary: To compare the acculturation of third generation Japanese Americans with a contemporary Caucasian college student population 275 Japanese Americans (106 males, 169 females), and 346 Caucasian American college students (136 males, 210 females), were given the Edwards Personal Preference Schedule, which describes personality in terms of 15 needs. The results indicated that while accuituration has taken place among the Japanese Americans, when their scores are compared with a contemporary Caucasian college sample, the Japanese Americans still express a significantly higher need for order, succorance, and abasement, and a significantly lower need for change and heterosexuality.     

Academic centers for prevention research. Making prevention a practical reality

The Prevention Centers Grant Program attempts to bridge the gap between the development and the implementation of research findings in public health practice. The program funds practical research on health issues of national and international importance. Grants can be awarded to schools of medicine, schools of osteopathy, or schools of public health. Ongoing programs at the University of North Carolina, the University of Washington, the University of Texas, and the University of Hawaii, as well as programs funded in 1990 at the University of Arizona, the University of Illinois, and Columbia University, are discussed.     

Personality,dream content and dream coping style

One hundred and thirty Ss completed the Eysenck Personality Questionnaire and a Dream Analysis Questionnaire (DAQ), based on retrospective recall. Differential dream content was self-rated on three parameters: frequency, duration and intensity. Factor analyses identified three specific dimensions of dreaming: ‘Personal Avoidance’, ‘Eroticism’ and ‘Adventuresomeness’. It was clear that, on the frequency and image-intensity categories, dream content related overwhelmingly to Neuroticism. Personality , as measured, was clearly related to the salience (e.g. clarity of imagery, emotionality) of dreams. Given the specificity of dream content, the results suggest the presence of a person-specific coping style, primarily affective in nature. The findings are discussed in light of the continuum or parallel model of the dream-waking cycle. Implications for the cognitive modification of aberrant dream images or fantasy processes are briefly reviewed.     

Environmental control of independent and dependent behaviors in preschool girls and boys: A model for early independence training

Differential adult response to the dependent behaviors of young girls and boys has been widely reported in the literature. The present study was an experimental investigation of the role of adult response patterns in shaping and maintaining independent behavior in preschoolers. A two-group design using random assignment was used to examine environmental control of independent and dependent behaviors, defined as task persistence and exploration, and proximity-seeking and socialization of attention, respectively. Subjects were 20 3- and 4-year-olds, 11 females and 9 males. Results indicated that independent and dependent behaviors are both strongly under the control of environmental contingencies in both boys and girls. Implications of these results for the theoretical understanding of sex-role development and women's mental health problems are discussed.     

Effects of peer presence on sex-typing of children's play behavior

Effect of peer presence on the sex-typed toy choices of 3- and 4-year-olds was investigated in a repeated measures experimental design. Twenty-six girls and thirty-six boys were tested under three conditions: (a) alone; (b) in the presence of a same-sex peer; and (c) in the presence of an opposite-sex peer. Amount of time spent playing with three feminine- and three masculine-stereotyped toys was recorded. For both boys and girls, play with “sex role-inappropriate” toys was significantly lower in the presence of an opposite-sex peer than in the solitary condition. Across conditions boys exhibited less play with opposite-sex-typed toys than girls. Rate of play with opposite-sex-typed toys increased in successive trials for both sexes. These results indicate that the presence of an opposite-sex peer functions as a discriminative stimulus for avoidance of “sex role-inappropriate” play in preschoolers and suggests that preschoolers may have a history of differential reinforcement for sex-typed play in the presence of peers.     

Book reviews

The author is a social geographer, currently involved with research which addresses the socio-political aspects of renewable energy generation in Britain.     

Situational influences on destructive acts

Social psychological approaches to destructive behavior have stressed the importance of environmental factors, but, the range of potentially important life events has not been identified. Using a personality-based model of destructiveness, a pool of relevant biodata items were generated. A sample of 285 college students completed the situational-based biodata measure, the CPI, and two standardized integrity screening measures. A factor analysis of the biodata items resulted in seven factors: alienation, nonsupportive family, negative adult models, life stressors, competitive pressures, negative peer group and financial need. In a series of blocked regressions the situational scales produced significant increases in prediction over the personality variables on the measures of integrity, socialization and delinquency. The implications of these findings for selection and research are discussed. This research was supported by a grant from the U.S. Office of Naval Research (Contract No. 00014-0339, Michael D. Mumford and Theodore L. Gessner, Principal Investigators.