排序方式： 共有47条查询结果，搜索用时 0 毫秒
41.
Daniel P. Johnson Mark A. Whisman Robin P. Corley John K. Hewitt Naomi P. Friedman 《Cognition & emotion》2013,27(7):1270-1286
This study examined the extent to which rumination and depression share genetic and environmental influences in a community sample of adult twins (N = 663). Twins completed multiple rumination questionnaires, a depressive symptoms questionnaire and a diagnostic interview. Rumination was moderately heritable (h2 = .37–.41 for the latent variable) and substantially influenced by nonshared environmental factors, and these results were consistent across different measures. Nonshared environmental influences on rumination were larger for women than men. Depressive symptoms and diagnosis were influenced by genetic and nonshared environmental factors (h2 = .30–.45). The genetic correlations between rumination and depression were moderate to large (rA = .40–.82), suggesting that a substantial proportion of the genetic influences on rumination overlap with those on depression. Results were similar when examining self-reported depressive symptoms and interview-based diagnosis of major depressive disorder. These results highlight the importance of rumination in the integration of cognitive and genetic models of depression risk. 相似文献
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Prashant K. Tarun Victoria C. P. Chen H. W. Corley 《Journal of Multi-Criteria Decision Analysis》2014,21(3-4):197-208
This paper focuses on the divergence behaviour of the successive geometric mean (SGM) method used to generate pairwise comparison matrices while solving a multiple stage, multiple objective (MSMO) optimization problem. The SGM method can be used in the matrix generation phase of our three‐phase methodology to obtain pairwise comparison matrix at each stage of an MSMO optimization problem, which can be subsequently used to obtain the weight vector at the corresponding stage. The weight vectors across the stages can be used to convert an MSMO problem into a multiple stage, single objective (MSSO) problem, which can be solved using dynamic programming‐based approaches. To obtain a practical set of non‐dominated solutions (also referred to as Pareto optimal solutions) to the MSMO optimization problem, it is important to use a solution approach that has the potential to allow for a better exploration of the Pareto optimal solution space. To accomplish a more exhaustive exploration of the Pareto optimal solution space, the weight vectors that are used to scalarize the MSMO optimization problem into its corresponding MSSO optimization problem should vary across the stages. Distinct weight vectors across the stages are tied directly with distinct pairwise comparison matrices across the stages. A pairwise comparison matrix generation method is said to diverge if it can generate distinct pairwise comparison matrices across the stages of an MSMO optimization problem. In this paper, we demonstrate the SGM method's divergence behaviour when the three‐phase methodology is used in conjunction with an augmented high‐dimensional, continuous‐state stochastic dynamic programming method to solve a large‐scale MSMO optimization problem. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
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Rhee SH Hewitt JK Corley RP Willcutt EG Pennington BF 《Journal of abnormal psychology》2005,114(3):346-362
The authors examined the validity of a method commonly used to test alternative hypotheses regarding the causes of comorbidity: the examination of underlying deficits of comorbid disorders. The authors simulated data in which the true causes of comorbidity were known, then compared the patterns of underlying deficits of the comorbid disorders found in the simulated data with the predicted results. The method of examining the underlying deficits of comorbid disorders could distinguish between several comorbidity models, including those that could not be distinguished well using other methods. The ability to distinguish the correct model decreased as the sample size and the correlation between the underlying deficits and the symptom scores decreased, suggesting that the issue of power should be considered carefully. 相似文献
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Pleasantness and intensity ratings of beverages served in containers congruent and incongruent with expectancy were assessed. Past research has shown that the violation of food expectancies, e.g., color, taste, temperature, leads to more negative evaluations of food. Thus, it was hypothesized that beverages sampled from a container incongruent with expectancy, e.g., beer from a coffee cup, would be rated less favorably than the same beverage sampled from a container congruent with expectancy, e.g., beer from a beer bottle. 61 participants evaluated three beverages (beer, orange juice, and hot chocolate) in three containers (bottle, glass, and cup) using 11-point rating scales for pleasantness and intensity. Analysis indicated beverages were rated as significantly more pleasant in containers congruent with expectancy, as well as rated more intense when presented in bottles. These results further address the effects of violating expectations on producing negative hedonic evaluations. 相似文献
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Islam and Politics in Central Asia by M. Haghayeghi. London: Macmillan, 1995, 264 pp. Empire's Edge: Travels in South‐Eastern Europe, Turkey and Central Asia by Scott Malcomson. Boston USA and London: Faber and Faber, 1994, 256 pp. Paperback, £8.99. The Resurgence of Central Asia: Islam or Nationalism by Ahmed Rashid. London and New Jersey: Zed Books, 1994, x+278 pp. Hardback, £36.95, $59.95; Paperback, £14.95, $25.00. Pride of Small Nations: The Caucasus and Post‐Soviet Disorder by Suzanne Golden‐berg. London and New Jersey: Zed Books, 1994. xvi+233 pp. Hardback, £36.95, $55.00; Paperback, £14.95, $22.50. The North Caucasus Barrier: the Russian Advance towards the Muslim World edited by M. Bennigsen Broxup. London: Hurst, 1992, xvii+252 pp. Hardback. Paperback, 1996, £14.95. 相似文献
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The Scottish Mental Survey of 1932 (SMS1932) provides a record of intelligence test scores for almost a complete year-of-birth group of children born in 1921. By linking UK Army personnel records, the Scottish National War Memorial data, and the SMS1932 dataset it was possible to examine the effect of childhood intelligence scores on wartime military service mortality in males. There were 491 matches between World War II (WWII) Scottish Army fatalities and the SMS1932 database; 470 (96%) had an age 11 mental ability score recorded. The mean (S.D.) age 11 IQ score of those who died on active service in WWII was 100.78 (15.56), compared with 97.42 (14.87) for male Army survivors (p < 0.0001; Cohen's d = 0.22). Men who took part in the SMS1932 and who were not found in the Army database had a higher mean score (100.45, S.D. =14.97) than those men who had been in the Army, regardless of whether they died or survived (mean IQ = 97.66, S.D. = 14.94; p < 0.0001; Cohen's d = 0.19). Male soldiers with a higher childhood IQ had a slightly increased risk of dying during active service in WWII. Men who did not join the Army had a higher IQ than men who did. Further research in this area should consider naval and air force personnel records in order to examine more fully the complex relationship between IQ and survival expectancy during active service in WWII. 相似文献
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