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261.
Mark S Turbin Richard Jessor Frances M Costa Qi Dong Hongchuan Zhang Changhai Wang 《Health psychology》2006,25(4):445-454
An explanatory model of adolescent health-enhancing behavior based on protective and risk factors at the individual level and in 4 social contexts was used in a study of school-based samples from the People's Republic of China (n = 1,739) and the United States (n = 1,596). A substantial account of variation in health-enhancing behavior--and of its developmental change over time--was provided by the model for boys and girls, and for the 3 grade cohorts, in both samples. In both samples, social context protective and risk factors accounted for more unique variance than did individual-level protective and risk factors, and context protection moderated both contextual and individual-level risk. Models protection and controls protection were of particular importance in the explanatory account. 相似文献
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Koenen KC Moffitt TE Caspi A Gregory A Harrington H Poulton R 《Journal of abnormal psychology》2008,117(2):460-466
Clinical and epidemiologic studies have established that posttraumatic stress disorder (PTSD) is highly comorbid with other mental disorders. However, such studies have largely relied on adults' retrospective reports to ascertain comorbidity. The authors examined the developmental mental health histories of adults with PTSD using data on mental disorders assessed across the first 3 decades of life among members of the longitudinal Dunedin Multidisciplinary Health and Development Study; 100% of those diagnosed with past-year PTSD and 93.5% of those with lifetime PTSD at age 26 had met criteria for another mental disorder between ages 11 and 21. Most other mental disorders had first onsets by age 15. Of new cases of PTSD arising between ages 26 and 32, 96% had a prior mental disorder and 77% had been diagnosed by age 15. These data suggest PTSD almost always develops in the context of other mental disorders. Research on the etiology of PTSD may benefit from taking lifetime developmental patterns of comorbidity into consideration. Juvenile mental-disorder histories may help indicate which individuals are most likely to develop PTSD in populations at high risk of trauma exposure. 相似文献
268.
John W. Lounsbury Lucy W. Gibson Frances L. Hamrick 《Journal of business and psychology》2004,18(4):427-451
Using six studies based on 23,823 individuals in diverse settings, we developed and validated a personality measure of Work Drive—a disposition to work long hours and extend oneself for one's job. The factor structure was confirmed in four settings. Work Drive was related to job performance showing incremental validity beyond cognitive aptitude and Big Five personality traits in five validation studies. It predicted academic performance at six different grade levels, even beyond Big Five traits. Construct validity was examined via work values, job involvement, normal personality scales, satisfaction measures, and cognitive ability. Little adverse impact was found. Occupational groups differed on Work Drive. Overall validity and areas of application were discussed. 相似文献
269.
Frances K. McSweeney Benjamin P. Kowal Eric S. Murphy Duane M. Isava 《Learning and motivation》2004,35(4):419-434
McSweeney and Weatherly (1998) argued that differential habituation to the reinforcer contributes to the behavioral interactions observed during multiple schedules. The present experiment confirmed that introducing dishabituators into one component of a multiple schedule increases response rate in the other, constant, component. During baseline, pigeons and rats responded on multiple variable interval 30-s variable interval 30-s schedules. During experimental conditions, subjects responded on the same schedule except that a dishabituating stimulus (manipulation of a light) was also presented randomly during one of the components. Constant-component responding was faster during the experimental than during the baseline conditions. This difference in responding grew larger across the session. The within-session pattern of responding was similar for the two components of each multiple schedule. Qualitatively similar results were observed for rats and pigeons. These results suggest that behavioral interactions sometimes arise from a change in reinforcer effectiveness between the baseline and experimental phases of the experiment, rather than from an assessment of reinforcer relativity (a comparison of reinforcers delivered during the two components in the experimental phase). Behavioral contrast and induction are sometimes produced by similar factors. 相似文献
270.
In this study we investigated the gender stereotyped thinking of 1672 Taiwanese senior high students (779 boys, 893 girls). Participants completed a Chinese version of a gender stereotyped thinking scale as part of a larger study. Six participants from 3 different types of academic schools (low, moderate, and high achievement levels) were interviewed to determine whether their written responses were consistent with their actual perceptions. Results of t tests and analyses of variance revealed significant gender differences for 9 of 11 gender stereotyped thinking items and significant main effects because of academic levels for 6 of 11 items. There were no significant interactions and no other main effects for other study variables. Strategies for decreasing students' gender stereotyped thinking are suggested. 相似文献