Improving postswitch performance in the dimensional change card-sorting task: the importance of the switch and of pretraining by redescribing the test cards

The dimensional change card-sorting task (DCCS) is used to assess the executive abilities of young children. Typically, 3-year-olds have difficulty in performing this task. However, the exact nature of this difficulty is still being debated. In the standard DCCS, children need to sort, for example, test cards with a blue flower or a red car into two boxes marked with the target cards. The 3-year-olds commonly have pronounced difficulty in switching from one sorting criterion (e.g., color) to another (e.g., shape). Here two experiments with 3-year-olds showed that making the transition between the sorting criteria more distinct improved performance significantly. This was achieved by taking away the target cards for a brief time period, asking a question irrelevant to the task, and pretraining the children by redescribing the test cards.     

Spatial visualization in physics problem solving

Three studies were conducted to examine the relation of spatial visualization to solving kinematics problems that involved either predicting the two-dimensional motion of an object, translating from one frame of reference to another, or interpreting kinematics graphs. In Study 1, 60 physics-naíve students were administered kinematics problems and spatial visualization ability tests. In Study 2, 17 (8 high- and 9 low-spatial ability) additional students completed think-aloud protocols while they solved the kinematics problems. In Study 3, the eye movements of fifteen (9 high- and 6 low-spatial ability) students were recorded while the students solved kinematics problems. In contrast to high-spatial students, most low-spatial students did not combine two motion vectors, were unable to switch frames of reference, and tended to interpret graphs literally. The results of the study suggest an important relationship between spatial visualization ability and solving kinematics problems with multiple spatial parameters.     

Combining versus analyzing multiple causes: how domain assumptions and task context affect integration rules

In everyday life, people typically observe fragments of causal networks. From this knowledge, people infer how novel combinations of causes they may never have observed together might behave. I report on 4 experiments that address the question of how people intuitively integrate multiple causes to predict a continuously varying effect. Most theories of causal induction in psychology and statistics assume a bias toward linearity and additivity. In contrast, these experiments show that people are sensitive to cues biasing various integration rules. Causes that refer to intensive quantities (e.g., taste) or to preferences (e.g., liking) bias people toward averaging the causal influences, whereas extensive quantities (e.g., strength of a drug) lead to a tendency to add. However, the knowledge underlying these processes is fallible and unstable. Therefore, people are easily influenced by additional task-related context factors. These additional factors include the way data are presented, the difficulty of the inference task, and transfer from previous tasks. The results of the experiments provide evidence for causal model and related theories, which postulate that domain-general representations of causal knowledge are influenced by abstract domain knowledge, data-driven task factors, and processing difficulty.     

组织信任氛围对任务绩效的作用途径

通过问卷调查与结构方程建模分析组织信任对于员工工作绩效的影响途径。203名被试和他们的上司参与了问卷调查。结果分析采用潜变量路径分析方法。我们构建多组模型与构思模型,通过两个阶段的检验,分析了组织信任的作用机制。结果表明：组织信任作用于心理安全感,而心理安全感通过两条独立途径影响工作绩效,分别是工作聚焦与工作改进。心理安全感能够促进员工针对工作的不断改进的行为和探索新工作方法的意愿,同时也有利于员工集中精力在工作上,从而提高个人工作业绩     

COLLECTIVE SELF‐ORGANIZATION IN GENERAL BIOLOGY: GILLES DELEUZE,CHARLES S. PEIRCE,AND STUART KAUFFMAN

Stuart Kauffman's proposal in Investigations to ground a “general biology” in the laws of self‐organization governing systems of autonomous agents runs up against the methodological problem of how to integrate formal mathematical with semantic and semiotic approaches to the study of evolutionary development. Gilles Deleuze's concept of the virtual and C. S. Peirce's system of existential graphs provide a theoretical framework and practical art for answering this problem of method by modeling the creative event of collective self‐organization as both represented and practiced in the scientific community.     

Examining Differential Effects of Internal and External Resources on Counselor Burnout Symptoms in South Korea

This study aims to bring to light the relationship between internal/external resources and counselors’ burnout depending on the type of clients (traumatized/bereaved vs. personal growth issues). Moderated mediation analysis was conducted with 165 counselors in South Korea. The results indicated that counselors of traumatized or bereaved clients were more likely to be affected by internal resources (countertransference management ability), whereas counselors of clients with personal growth issues were more likely to be affected by external resources (environmental resources). Implications and limitations of this study are discussed.     

A study of the psychometric properties of the Beck Depression Inventory‐II,the Montgomery and Åsberg Depression Rating Scale,and the Hospital Anxiety and Depression Scale in a sample from a healthy population

The objective of this study is to evaluate internal consistency and psychometric properties of the Hospital Anxiety and Depression Scale (HADS), the Beck Depression inventory‐II (BDI‐II) and the Montgomery and Åsberg Depression Rating Scale (MADRS) for screening for major depressive episode (MDE) in a selected sample from a healthy population. Participants answered the BDI‐II and the HADS questionnaires and were interviewed with MADRS. The Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders (DSM)‐IV Axis I Disorders‐Clinician Version (SCID‐CV) was used to diagnose MDE. Current MDE was diagnosed in 20 (6%) of the 357 participants. All three scales including the depression sub‐scale for HADS had high area under the receiver operating characteristics curve (ROC) (AUC) (0.84–0.87), and internal consistency was also high for all scales (0.75–0.89). Optimal cut‐off for MDE was ≥ 12 for BDI‐II, MADRS ≥ 8, HADS total ≥ 9, and HADS‐D ≥ 4, which all resulted in sensitivities = 85% and specificities > 78%. Diagnostic accuracy was low on all depression scales (Cohen's kappa = 0.20–0.40). Reports of the properties of depression scales in a healthy population are limited. We found BDI‐II, HADS and MADRS to be acceptable as screening instruments for MDE in a selected sample from healthy population with recommend cut‐offs as mentioned above.     

Use and interpretation of test scores from limited cognitive test batteries: How g + Gc can equal g

Single scores from limited and unbalanced test batteries of cognitive ability can be ambiguous to interpret theoretically. In this study, a limited verbally and knowledge‐loaded cognitive test battery, from applicants to the Swedish police academies (N = 1,344), was examined to provide foundations for the use and interpretation of test scores. Three measurement models were compared: one single factor model and two bifactor models, which decomposed the variance of the battery into orthogonal components. The models were evaluated by fit indices and omega coefficients, and then applied to the prediction of academic performance. The overall prediction of all models was similar, although specific abilities also were found to provide substantial predictive validity over and above general intelligence (g). The findings provide support for the use of single scores in applied settings (selection), but suggest that it may be more appropriate to interpret such scores as composites of substantive components, and not just as measures of g.     

腰-硬联合麻醉在高海拔高龄患者髋关节置换术中的应用

探讨腰-硬联合麻醉及全身麻醉用于高海拔高龄低氧患者行人工髋关节置换的临床优势。分析2010年1月～2013年11月来我院进行人工髋关节置换术的高龄（年龄＞69岁）低氧患者86例,其中全麻31例,腰-硬联合麻醉55例,记录麻醉后5min、15min、30min及术毕血压、心率,术中低血压发生率,术后转ICU比例等指标。与全麻相比,腰-硬联合麻醉组血流动力学稳定、术中低血压发生率降低（P＜0．05）、入住ICU几率显著降低（P＜0．05）。在高海拔高龄低氧患者行人工髋关节置换术中采用腰-硬联合麻醉可以使患者麻醉效果突出,血流动力学平稳,安全有效,比全麻更有临床应用优势。     

酮咯酸氨丁三醇复合丙泊酚-瑞芬太尼麻醉用于门诊宫腔镜检术的效果观察

观察和评价酮咯酸氨丁三醇复合丙泊酚一瑞芬太尼麻醉用于门诊宫腔镜检术的临床效果。选取无痛门诊宫腔镜检术患者60例,依据随机数字表法将患者随机分为瑞芬太尼组（R组）和酮咯酸氨丁三醇组（K组）。统计患者麻醉满意度、围术期心血管用药情况和术毕2h内不良反应发生情况。结果与K组相比,R组手术开始时（T1）、手术开始10min（T2）循环和呼吸抑制较明显（P〈0．05）,麻醉起效时间相对较长（P〈0．05）,术毕镇静效果较差（P〈0．01）,麻醉满意度较低（P〈0．01）,同时心血管用药次数增多（P〈0．05）。两组患者术后均未发生严重不良反应,但K组患者术后镇痛效果明显好于R组（P〈0．05）。酮咯酸氨丁三醇复合丙泊酚一瑞芬太尼麻醉应用于门诊无痛宫腔镜检术能够使患者呼吸循环更加平稳,提高麻醉满意度,减少围术期心血管用药次数和有效缓解术后疼痛的发生。