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1.
采用logistic回归分析,考察了322名农村中小学教师的人口学变量和工作压力、行动控制风格、行动控制策略对其工作倦怠的风险预测能力,并借助结构方程模型进一步分析了各心理变量间的关系,从PSI理论角度诠释了倦怠形成的机制。结果发现:中专、高级职称、中高压力水平、低行动控制策略和状态导向是导致中小学教师工作倦怠的危险性因素;行动导向者的工作压力、工作倦怠及行动控制策略运用水平显著好于状态导向者;工作压力、行动控制风格对工作倦怠的直接效应显著;行动控制风格和行动控制策略在工作压力和工作倦怠间起中介作用。因此,PSI视角下的工作压力-工作倦怠模型能够更有效地解释工作倦怠的形成机制;借助PSI理论构建的干预训练,有助于预防和缓解工作倦怠。  相似文献   

2.
The authors examined holistic wellness factors and drinking and driving behaviors among undergraduate students. Two factors of the Indivisible Self Wellness Model, the Coping Self and the Physical Self, decreased the odds of engaging in drinking and driving behavior.  相似文献   

3.
When relying on crime scene behaviours to link serial crimes, linking accuracy may be influenced by the measure used to assess across‐crime similarity and the types of behaviours included in the analysis. To examine these issues, the present study compared the level of linking accuracy achieved by using the simple matching index (S) to that of the commonly used Jaccard's coefficient (J) across themes of arson behaviour. The data consisted of 42 crime scene behaviours, separated into three behavioural themes, which were exhibited by 37 offenders across 114 solved arsons. The results of logistic regression and receiver operating characteristic analysis indicate that, with the exception of one theme where S was more effective than J at discriminating between linked and unlinked crimes, no significant differences emerged between the two similarity measures. In addition, our results suggest that thematically unrelated behaviours can be used to link crimes with the same degree of accuracy as thematically related behaviours, potentially calling into the question the importance of theme‐based approaches to behavioural linkage analysis. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   

4.
The Quality Control (QC) Guidelines are intended to increase the efficiency, precision, and accuracy of the scoring, analysis, and reporting process of testing. The QC Guidelines focus on large-scale testing operations where multiple forms of tests are created for use on set dates. However, they may also be used for a wide variety of other testing situations and assessment techniques and for almost any situation in which assessment occurs. The QC Guidelines are applicable in any form of test administration, including paper and pencil tests and the ever-increasing computerized assessments via the Internet or offline.  相似文献   

5.
Consider the class of two parameter marginal logistic (Rasch) models, for a test ofm True-False items, where the latent ability is assumed to be bounded. Using results of Karlin and Studen, we show that this class of nonparametric marginal logistic (NML) models is equivalent to the class of marginal logistic models where the latent ability assumes at most (m + 2)/2 values. This equivalence has two implications. First, estimation for the NML model is accomplished by estimating the parameters of a discrete marginal logistic model. Second, consistency for the maximum likelihood estimates of the NML model can be shown (whenm is odd) using the results of Kiefer and Wolfowitz. An example is presented which demonstrates the estimation strategy and contrasts the NML model with a normal marginal logistic model.This research was supported by NIMH traning grant, 2 T32 MH 15758-06 and by ONR contract N00014-84-K-0588. The author would like to thank Diane Lambert, John Rolph, and Stephen Fienberg for their assistance. Also, the comments of the referees helped to substantially improve the final version of this paper.  相似文献   

6.
We conducted two experimental studies with between-subjects and within-subjects designs to investigate the item response process for personality measures administered in high- versus low-stakes situations. Apart from assessing measurement validity of the item response process, we examined predictive validity; that is, whether or not different response models entail differential selection outcomes. We found that ideal point response models fit slightly better than dominance response models across high- versus low-stakes situations in both studies. Additionally, fitting ideal point models to the data led to fewer items displaying differential item functioning compared to fitting dominance models. We also identified several items that functioned as intermediate items in both the faking and honest conditions when ideal point models were fitted, suggesting that ideal point model is “theoretically” more suitable across these contexts for personality inventories. However, the use of different response models (dominance vs. ideal point) did not have any substantial impact on the validity of personality measures in high-stakes situations, or the effectiveness of selection decisions such as mean performance or percent of fakers selected. These findings are significant in that although prior research supports the importance and use of ideal point models for measuring personality, we find that in the case of personality faking, though ideal point models seem to have slightly better measurement validity, the use of dominance models may be adequate with no loss to predictive validity.  相似文献   

7.
Heteroscedasticity is a well-known issue in linear regression modeling. When heteroscedasticity is observed, researchers are advised to remedy possible model misspecification of the explanatory part of the model (e.g., considering alternative functional forms and/or omitted variables). The present contribution discusses another source of heteroscedasticity in observational data: Directional model misspecifications in the case of nonnormal variables. Directional misspecification refers to situations where alternative models are equally likely to explain the data-generating process (e.g., xy versus yx). It is shown that the homoscedasticity assumption is likely to be violated in models that erroneously treat true nonnormal predictors as response variables. Recently, Direction Dependence Analysis (DDA) has been proposed as a framework to empirically evaluate the direction of effects in linear models. The present study links the phenomenon of heteroscedasticity with DDA and describes visual diagnostics and nine homoscedasticity tests that can be used to make decisions concerning the direction of effects in linear models. Results of a Monte Carlo simulation that demonstrate the adequacy of the approach are presented. An empirical example is provided, and applicability of the methodology in cases of violated assumptions is discussed.  相似文献   

8.
以560名5、7、10年级学生为被试, 检验父母支持、友谊质量与孤独感、抑郁的关系是否符合间接效应模型及其模型适用性问题。结构方程建模及群组分析结果发现:(1)总体上, 间接效应模型成立, 父母支持既直接影响孤独感和抑郁, 也通过影响友谊质量进而影响孤独感和抑郁状况; (2)从具体适应问题看, 间接效应模型对于孤独感和抑郁均显著, 但更适用于对孤独感的预测; (3)从发展阶段看, 间接效应模型仅适用于童年晚期和青少年早期, 且更适用于童年晚期; (4)从性别角度看, 间接效应模型对两性均显著, 但更适用于男生。结果提示, 父母支持、友谊质量对孤独感和抑郁的影响均符合间接效应模型, 但该模型的适用性可能因具体适应问题、发展阶段和性别而有差异。  相似文献   

9.
The present study illustrates the usefulness of finite mixture of generalized linear models (GLMs) to examine variability in cognitive strategies during childhood. More precisely, it addresses this variability in set-shifting situations where task-goal updating is endogenously driven. In a task-switching paradigm 5–6-year-olds had to switch between color- and shape-matching rules as a function of a predetermined, predictable task sequence. A finite mixture of GLMs was fitted to explore individual differences in performance. The statistical model revealed five response profiles, defined by accuracy and response times. These response profiles likely correspond to different cognitive strategies with varying efficiency and differential relations to working memory capacity (assessed by backward digit span). These results illustrate the heuristic value of statistical modeling to reveal the behavioral and cognitive variability in the temporal dynamics of children's cognitive functioning.  相似文献   

10.
A new measure for reliability of a rating scale is introduced, based on the classical definition of reliability, as the ratio of the true score variance and the total variance. Clinical trial data can be employed to estimate the reliability of the scale in use, whenever repeated measurements are taken. The reliability is estimated from the covariance parameters obtained from a linear mixed model. The method provides a single number to express the reliability of the scale, but allows for the study of the reliability’s time evolution. The method is illustrated using a case study in schizophrenia. The authors are grateful to J&J PRD for kind permission to use their data. We gratefully acknowledge support from the Belgian IUAP/PAI network “Statistical Techniques and Modeling for Complex Substantive Questions with Complex Data.”  相似文献   

11.
为探讨公正世界信念对大学生学习成绩的影响,并说明时间管理因素在二者关系中的作用机制,研究1以205名大学生为被试,采用问卷法探讨了公正世界信念通过时间管理对大学生实际学习成绩起作用的机制。结果表明,时间管理倾向在公正世界信念和学习成绩的关系中起部分中介作用。研究2随机选取120名大学生为被试,采用启动实验范式考察了公正世界信念对时间规划的影响。结果表明,当启动不公正信念时,个体计划学习投入时间显著减少,同时伴随娱乐等其他时间增加。总之,公正世界信念可部分通过影响大学生的时间管理进而影响其学习成绩,而且大学生对不公正信念更敏感。  相似文献   

12.
认知风格分析测验(CSA)修订及大学生样本的划界尝试   总被引:2,自引:1,他引:1  
以大学生为对象,对“认知风格分析测验”(Cognitive Style Analysis,CSA)进行了项目分析、信度、效度检验等一系列研究,并通过大学生样本划界尝试。项目的区分度检验表明测验中所有项目都具有较好的区分度,两个维度间的相关分析进一步确证了CSA的结构效度。进一步的信度分析表明CSA具备可接受的内部一致性信度和重测信度。跨文化比较结果表明,我国大学生认知风格的划界与英国常模具有显著差异。  相似文献   

13.
Although the Autobiographical Memory Test (AMT) is widely used its psychometric properties have rarely been investigated. This paper utilises data gathered from a 10-item written version of the AMT, completed by 5792 adolescents participating in the Avon Longitudinal Study of Parents and Children, to examine the psychometric properties of the measure. The results show that the scale derived from responses to the AMT operates well over a wide range of scores, consistent with the aim of deriving a continuous measure of over-general memory. There was strong evidence of group differences in terms of gender, low negative mood, and IQ, and these were in agreement when comparing an item response theory (IRT) approach with that based on a sum score. One advantage of the IRT model is the ability to assess and consequently allow for differential item functioning. This additional analysis showed evidence of response bias for both gender and mood, resulting in attenuation in the mean differences in AMT across these groups. Implications of the findings for the use of the AMT measure in different samples are discussed.  相似文献   

14.
Many laboratory studies of aggression use a measure known as the modified Taylor Competitive Reaction Time Test (TCRTT), for which validation studies are lacking. Using sound blasts administered by the participant against a fictional human opponent, the TCRTT also allows for multiple methods of measuring aggression. The validity of the TCRTT was tested in 53 college student participants. Participants took a self-report measure of aggressiveness as well as neuropsychological measures of frontal lobe functioning predictive of aggression. Results were not supportive of the TCRTT's validity and indicated concerns regarding the use of the TCRTT as a measure of aggression. Results suggest that labaratory studies of media violence using the TCRTT are of questionable validity.  相似文献   

15.
Many decisions involve a degree of personal control over event outcomes, which is exerted through one's knowledge or skill. In three experiments we investigated differences in decision making between prospects based on a) the outcome of random events and b) the outcome of events characterized by control. In Experiment 1, participants estimated certainty equivalents (CEs) for bets based on either random events or the correctness of their answers to U.S. state population questions across the probability spectrum. In Experiment 2, participants estimated CEs for bets based on random events, answers to U.S. state population questions, or answers to questions about 2007 NCAA football game results. Experiment 3 extended the same procedure as Experiment 1 using a within-subjects design. We modeled data from all experiments in a prospect theory framework to establish psychological mechanisms underlying decision behavior. Participants weighted the probabilities associated with bets characterized by control so as to reflect greater risk attractiveness relative to bets based on random events, as evidenced by more elevated weighting functions under conditions of control. This research elucidates possible cognitive mechanisms behind increased risk taking for decisions characterized by control, and implications for various literatures are discussed.  相似文献   

16.
为探讨儿童期虐待对公正世界信念的作用及心理机制,本研究采用问卷法对929名大学生进行了调查,并采用潜变量模型对数据进行了分析。结果发现:(1)儿童期虐待显著负向预测大学生公正世界信念;(2)控制感在儿童期虐待与公正世界信念之间起完全中介作用;(3)家庭社会经济地位调节了儿童期虐待与控制感的关系,高家庭社会经济地位放大了儿童期虐待与控制感间的负相关。研究结果表明,可以通过预防儿童虐待和增强控制感等干预措施来提升公正世界信念,并且需要对高社会经济地位家庭的儿童虐待加大关注。  相似文献   

17.
In a recent article published in this journal, Yuan and Fang (British Journal of Mathematical and Statistical Psychology, 2023) suggest comparing structural equation modeling (SEM), also known as covariance-based SEM (CB-SEM), estimated by normal-distribution-based maximum likelihood (NML), to regression analysis with (weighted) composites estimated by least squares (LS) in terms of their signal-to-noise ratio (SNR). They summarize their findings in the statement that “[c]ontrary to the common belief that CB-SEM is the preferred method for the analysis of observational data, this article shows that regression analysis via weighted composites yields parameter estimates with much smaller standard errors, and thus corresponds to greater values of the [SNR].” In our commentary, we show that Yuan and Fang have made several incorrect assumptions and claims. Consequently, we recommend that empirical researchers not base their methodological choice regarding CB-SEM and regression analysis with composites on the findings of Yuan and Fang as these findings are premature and require further research.  相似文献   

18.
The demand for psychological services in the United States is higher than the available supply of qualified mental health professionals. As a result, there is a substantial need for low-cost interventions that are more accessible and amenable to scale-up independent of the availability of clinicians. Previous studies have found that self-directed bibliotherapy can be an effective intervention with minimal therapist contact. Using the Plan-Do-Study-Act (PDSA) improvement process framework, we implemented self-directed therapy in our outpatient anxiety disorders specialty clinic. We identified four self-directed therapy resources (two books and two smartphone apps) based on cognitive behavioral or acceptance and mindfulness principles. We conducted initial 30-minute billable bibliotherapy consultations with six patients on our waitlist, where we provided the rationale for self-guided treatment, introduced the four resources, helped the patient identify one resource to use, and answered any questions. Eight weeks later, we met with five of these patients for a second billable 30-minute consultation (one had already started individual therapy) and gathered information regarding feasibility and acceptability of these resources as well as helped the patient make continued or better use of the resource until beginning therapy. This case series suggests that self-directed interventions can be effectively implemented in this manner, though with mixed outcomes and effects on patients and their course of care. We describe improvements we intend to implement in future iterations of self-directed therapy.  相似文献   

19.

In this letter, the dislocation patterns on the common primary slip plane in a fatigued \[1-34]-\[182-7] copper bicrystal with a Sigma=19b grain boundary (GB) have been investigated using the electron channelling contrast technique in a scanning electron microscope. The results show that the two-phase dislocation structure, such as veins and persistent slip band (PSB) walls, embedded within veins, can be clearly seen on the common primary slip plane. In particular, the interactions of PSBs with the GB are clearly revealed. It is found that there are three kinds of interaction mode between the GB and the dislocations during cyclic deformation, and those are discussed. It is suggested that the dislocations carried by PSBs cannot transfer through the GB continuously even though the bicrystal has a common primary slip plane and its surface slip bands are continuous across the GB.  相似文献   

20.
Abstract: This study investigated a specific cognitive appraisal functioning as a form of compensatory secondary control that allows the individual to reevaluate positive aspects of adversity experienced in the past, and enhances emotional resources for further personal development through primary control. The impact of four kinds of present‐time appraisals on recollection of 11 types of emotions that 50 third‐year students initially experienced during preparations for university entrance examinations taken two and a half years earlier were examined. Cognitive appraisal of the experience of the adversity was found to function as compensatory secondary control. Positive emotions were overestimated whereas negative emotions were underestimated when the participants retrospectively evaluated their experience of exam preparation positively. Participants who regarded their exam preparations as a fruitful experience also positively evaluated the past struggle in that situation. These findings suggest a partial explanation for the role of cognitive appraisal in the directive, particularly analogous function of autobiographical memory in the individual's approach to immediate or future problems.  相似文献   

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