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871.
Parent-daughter transmission of the androgen receptor gene as an explanation of the effect of father absence on age of menarche 总被引:2,自引:0,他引:2
Based on an evolutionary theory of socialization, Belsky and colleagues proposed that girls exposed to a stressful environment, especially when due to father absence in the first 7 years of life, showed an early onset of puberty, precocious sexuality, and unstable relationships as adults. The authors of this article examined an alternative explanation that a variant X-linked androgen receptor (AR) gene, predisposing the father to behaviors that include family abandonment, may be passed to their daughters causing early puberty, precocious sexuality, and behavior problems. The results of a study of 121 White males and 164 White females showed a significant association of the short alleles of the GGC repeat polymorphism of the AR gene with a range of measures of aggression and impulsivity, increased number of sexual partners, sexual compulsivity, and lifetime number of sex partners in males; and paternal divorce, father absence, and early age of menarche in females. These findings support a genetic explanation of the Belsky psychosocial evolutionary hypothesis regarding the association of fathers' absence and parental stress with early age of onset of menarche and early sexual activity in their daughters. A genetic explanation of the father absence effect is proposed in which fathers carrying the AR alleles are more likely to abandon a marriage (father absence) and pass those alleles to their daughters in whom they produce an earlier age of menarche and behavioral problems. 相似文献
873.
874.
875.
Robert J. Sumner 《高等教育研究与发展》1989,8(2):181-189
To obtain evaluative data on outcomes of the Advanced Education Institution Award scheme a study which included a survey of graduates from masters programs in Australian colleges of advanced education in the years 1980–1985 was undertaken. The survey was designed to identify graduate characteristics, to analyse award distribution across disciplines and to obtain general evaluative data on awards and masters degrees. The impact of gender in each of these analyses was to be considered. Further, details on employment and further study activities were to be documented. 相似文献
876.
877.
Schinke SP 《Social work in education》1982,4(2):34-42
Social workers in the schools can take positive and immediate action to address teenage pregnancy through the use of interventive models that help teenagers avoid the risk of unwanted pregnancy. The present article describes and empirically supports 1 such school-based model. The author 1st delineates the major problems associated with teenage pregnancy and then relates the preventive model to prior research and details its implementation in school settings. A discussion of reslults from the model's field evaluation is followed with implications for school social workers. The model reported here is directed to all adolescents rather than focusing on a "high-risk" population. The risk of pregnancy is assumed to be a normal part of adolescent development. Grounded in an intterpersonal conceptualization of teenage pregnancy and in related empirical research, the school-based model helps young men and women acquire the requisite skills for preventing unwanted pregnancy. The program requires school social workers to meet with 12-18 teenage students of both sexes and to provide them with basic information on human sexuality, reproduction and contraception. These topics are covered by lectures, demostrations, discussion and audiovisual presentations. Through instruction, feedback and reinforcement, student learn how to talk about sensitive topics, stand up for their rights and be convincing and effective when carrying out decisions. Homework assignments are designed to develop the students'skills in interactions with dating partners, parents and friends. The clinical applicability and effectiveness of this prevention training model is documented through a study conducted in an urban high school. 36 informed and consenting sophomores of both sexes were randomly assigned either to an interventive group or to a non-treatment control group. Compared to the latter, the former had more accurate knowledge of human reproduction and contraception after the intervention. Buttressing these and other positive results, the students' enthusiastic feedback left little doubt that they enjoyed the group process and were interested in the training. Moreover, analyses of follow-up data on coital activity, the use of contraceptives, and family planning decisions revealed that the training had produced striking effects. Decision making tests, behavioral performance tests, follow-up questionnaires and videotaping of behavior during stressful interpersonal situations were among the evaluation techniques used. 相似文献
878.
P. Kelley 《Learning, Media and Technology》1991,17(3):149-158
Educationalists are failing to help children acquire the skills needed to understand television, despite its importance in our society and schools. The present study examines whether a successful course of television literacy could be developed to cover the entire school age range, based on a common approach. Results indicate that the course was successful at all levels, and suggest that further research might identify factors which influence television comprehension. 相似文献
879.
David J.P. Brook 《教育心理学》1982,2(3-4):313-316
880.
Culture shock has been identified as a psychological reaction to a change in cultural environment. The main symptoms of culture shock are reported to be psychological disturbance, a negative reaction to the new surroundings and a longing for a more familiar environment. Research has identified culture shock as a component in the difficulties that international students face when studying in another country. One way that institutions of higher education have responded to these difficulties is to provide initial cultural orientation. In the study reported here, a group of post-graduate students who had participated in a study skills and cultural orientation course at a British university were compared with a group who had not. Contrary to the research hypothesis, the group that took part in the orientation course were significantly more homesick and reported more psychological difficulties. The overall findings cast doubt on the received view of culture shock as it affects international students. They suggest that culture shock is exacerbated by personal and social factors and this has implications for the way that international students may be helped through the experience. 相似文献