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511.
William E. Haley Beth Han J. Neil Henderson 《Journal of clinical psychology in medical settings》1998,5(3):393-409
Due to dramatic improvements in life expectancy among Americans from diverse ethnic groups, the graying of America is resulting in a particularly marked increase in ethnic diversity in late life. Clinicians must be prepared to address the problems of older ethnic minority patients, who present with distinct problems during late life and may present these problems in culturally prescribed ways. Cultural variations in views about the nature of mental disorders, issues in assessing and treating depression and dementia, and attention to issues of family caregivers are deserving of special attention. 相似文献
512.
This paper is about fitting multivariate normal mixture distributions subject to structural equation modeling. The general model comprises common factor and structural regression models. The introduction of covariance and mean structure models reduces the number of parameters to be estimated in fitting the mixture and enables one to investigate a variety of substantive hypotheses concerning the differences between the components in the mixture. Within the general model, individual parameters can be subjected to equality, nonlinear and simple bounds constraints. Confidence intervals are based on the inverse of the Hessian and on the likelihood profile. Several illustrations are given and results of a simulation study concerning the confidence intervals are reported. 相似文献
513.
514.
In reply to Lamiell's (1991) criticism, we argue that his notion of nomothesis reflects a Newtonian, mechanistic notion of lawfulness and that his otherwise justified attack on the individual differences paradigm is an overreaction to an era that is dominated by this paradigm. 相似文献
515.
Parallel and competitive processes in hierarchical analysis: perceptual grouping and encoding of closure. 总被引:13,自引:0,他引:13
S Han G W Humphreys L Chen 《Journal of experimental psychology. Human perception and performance》1999,25(5):1411-1432
The role of perceptual grouping and the encoding of closure of local elements in the processing of hierarchical patterns was studied. Experiments 1 and 2 showed a global advantage over the local level for 2 tasks involving the discrimination of orientation and closure, but there was a local advantage for the closure discrimination task relative to the orientation discrimination task. Experiment 3 showed a local precedence effect for the closure discrimination task when local element grouping was weakened by embedding the stimuli from Experiment 1 in a background made up of cross patterns. Experiments 4A and 4B found that dissimilarity of closure between the local elements of hierarchical stimuli and the background figures could facilitate the grouping of closed local elements and enhanced the perception of global structure. Experiment 5 showed that the advantage for detecting the closure of local elements in hierarchical analysis also held under divided- and selective-attention conditions. Results are consistent with the idea that grouping between local elements takes place in parallel and competes with the computation of closure of local elements in determining the selection between global and local levels of hierarchical patterns for response. 相似文献
516.
FOK产生机制的实验研究 总被引:10,自引:0,他引:10
通过以初中生和大学生为被试的两个实验探讨了FOK(Feeling-of-Knowing即“熟知感”)的产生机制,是线索熟悉性还是靶项目的可提取性(或记忆强度)决定FOK判断的等级。识记材料为90对中文词对.分前后两部分让被试识记,前后两部分词对之间安排三种关系:①完全相同;②仅线索词相同,③完全不同,这三种关系可选成不同的靶项目记忆强度和不同的线索熟悉性.两组实验结果一致表明,FOK的等级判断的高低取决于线索熟悉程度,而不随靶项目的记忆强度而变化. 相似文献
517.
小学一年级数学新教材插图效果的眼动研究 总被引:5,自引:1,他引:4
采用2×3两因素混合实验设计,使用美国应用科学实验室(ASL)生产的EVM3200型眼动仪,对小学一年级学生阅读配有不同背景插图应用题的阅读理解指标和眼动指标进行考察。结果表明:无论应用题难易,学生对有背景插图的阅读理解优于对无背景插图的理解;复杂的插图背景有利于学生理解较难应用题;简单的插图背景有利于学生理解较容易应用题;眼动实验结果表明,小学一年级数学新教材插图效果较好 相似文献
518.
采用“类信号检测论方法”,通过两个实验,研究了在记忆信息提取过程中元记忆的预见性监测判断(Feeling-of-knowing)和元控制的作用及其影响因素。实验一探讨了识记材料的难易、识记遍数对元监测判断以及输出控制中的反应标准是否有影响;实验二探讨了严格和宽松的奖惩条件对输出控制中反应标准的影响。用计算机随机呈现识记用的词表材料,识记之后让被试进行FOK等级判断和自由回忆,再用“类信号检测论”方法统计实验数据,分析各种条件下回忆成绩、FOK判断等级,计算出相应的符合率和反应标准。实验一结果表明,不同材料难度和识记遍数下的回忆成绩和FOK判断等级差异显著,但输出控制中的反应标准值没受这些因素的影响;实验二结果是严格和宽松奖惩条件下的反应标准值差异显著,严格条件下的反应标准显著高于宽松条件下的反应标准,表明奖惩条件对信息提取中的反应标准有显著影响 相似文献
519.
动物创造力和创新研究概述 总被引:1,自引:1,他引:0
充满不确定性的环境里,创造力对于人类和动物的生存和进化都起着十分重要的作用。长期以来动物的创造力和创新能力的研究没有受到重视,但最近这个领域开始受到越来越多的关注。该文对动物创造力的有关研究做了简要介绍,并对该领域的发展做了一些探讨 相似文献
520.
Conor V. Dolan Han L. J. van der Maas Peter C. M. Molenaar 《Behavior research methods》2002,34(3):304-323
We present a framework for distributional reaction time (RT) analysis, based on maximum likelihood (ML) estimation. Given certain information relating to chosen distribution functions, one can estimate the parameters of these distributions and of finite mixtures of these distributions. In addition, left and/or right censoring or truncation may be imposed. Censoring and truncation are useful methods by which to accommodate outlying observations, which are a pervasive problem in RT research. We consider five RT distributions: the Weibull, the ex-Gaussian, the gamma, the log-normal, and the Wald. We employ quasi-Newton optimization to obtain ML estimates. Multicase distributional analyses can be carried out, which enable one to conduct detailed (across or within subjects) comparisons of RT data by means of loglikelihood difference tests. Parameters may be freely estimated, estimated subject to boundary constraints, constrained to be equal (within or over cases), or fixed. To demonstrate the feasibility of ML estimation and to illustrate some of the possibilities offered by the present approach, we present three small simulation studies. In addition, we present three illustrative analyses of real data. 相似文献