工作记忆容量和加工速度在归纳推理能力老化中的作用

利用结构方程模型考察了工作记忆容量和加工速度在归纳推理老化中的作用。样本为217名社区老人。结果发现：(1)工作记忆容量在归纳推理老化中具有重要作用．语音环路和视空问初步加工系统在推理过程巾参与程度相当。(2)在年龄和归纳推理能力之问存在年龄——加工速度——工作记忆容量——归纳推理这样一条层级关系。年龄、加工速度和工作记忆容量共同解释归纳推理中57％的变异。     

试析联结主义范式对婴儿发展的解释

用联结主义范式作为解释婴儿发展的机制已成为当前认知发展研究的新趋势。本文以婴儿分类和客体永久性为范例,分析了这一范式在解释婴儿发展方面的理论潜力及不足。     

The Effects of Demographic Variables and Stereotype Threat on Black/White Differences in Cognitive Ability Test Performance

The present study examined whether a set of demographic variables and stereotype threat could explain African-American/White mean differences in cognitive ability test performance. African Americans and Whites were found to significantly differ in stereotype threat and educational attainment of participants' fathers (i.e., father education). In moderate support of our study hypothesis, stereotype threat and father education partially mediated race differences in cognitive ability test scores. Implications for study findings are discussed, and limitations of the study are noted.     

Language counts: Early language mediates the relationship between parent education and children's math ability

Children's early math skills have been hailed as a powerful predictor of academic success. Disparities in socioeconomic context, however, also have dramatic consequences on children's learning. It is therefore critical to investigate both of these distinct contributors in order to better understand the early foundations of children's academic outcomes. This study tests an integrated model of children's developing math ability so as to (1) identify the specific skills and abilities most clearly linked to early math achievement and (2) measure the influence of children's socioeconomic context on each of these skills. We first evaluated the early vocabulary, number word knowledge (knower level), and Approximate Number System (ANS) acuity of a diverse group of preschoolers. Then, approximately 1 year later as they entered Kindergarten, we administered a test of early math achievement. We find that children's early language (general vocabulary and number word knowledge) fully mediates the relationship between parent education and math ability. Additionally, number word knowledge mediates the relationship between ANS acuity and early math. We argue that increased focus on number word knowledge, as well as general vocabulary, may help to minimize disparities in math ability as children enter kindergarten. We also highlight the role of parent education on children's learning and note that this may be an important locus for intervention.     

Deep-level and surface-level individual differences and applicant attraction to organizations: A meta-analysis

Given the importance of individual differences in the study of applicant attraction to organizations, we conducted a meta-analysis to assess the relationship between both applicant deep-level characteristics (e.g., applicant ability, personality, and experience) and surface-level characteristics (e.g., race, gender, and age) with applicant attraction. Results of our review of over 1700 articles (of which, 85 provided relevant data for our analysis) indicated that several relevant applicant individual differences are related to applicant attraction, independent of organizational influences. Stronger effect sizes were found for applicant deep-level characteristics (versus surface level) as well as field studies (versus lab studies). Extraversion and conscientiousness had the strongest positive relationships with applicant attraction, while applicant grade point average, as an indicator of ability, had the strongest negative relationship. The significance of these findings, including implications for applicants and organizations, is discussed.     

Do motor ability and handwriting kinematic measures predict organizational ability among children with Developmental Coordination Disorders?

Background and aimChildren with Developmental Coordination Disorders (DCD) exhibit deficient daily performance concealed in their perception–action mechanism. The aim of this study was to analyze behavior organization of children with DCD, in varied tasks that require generating and monitoring mental representations related to space and time inputs/requirements, for achieving better insight about their perception–action mechanism.MethodParticipants included 42 children aged 7–10, half of whom were defined with DCD and half were typically developing (TD). The children were matched for age, gender and school. They were evaluated using the Movement–ABC and performed three handwriting tasks on an electronic tablet that is part of a computerized system (ComPET – Computerized Penmanship Evaluation Tool). In addition, their teachers completed the Questionnaire for Assessing Students’ Organizational Abilities-Teachers (QASOA-T) to assess the children’s daily organizational ability.ResultsSignificant group differences (DCD versus controls) were found for all handwriting kinematic measures across the three handwriting tasks and for the children’s organizational abilities. Motor ability predicted a considerable percentage of the variance of the kinematic handwriting measures (30–37%), as well as a high percentage of the variance of their organizational abilities (67%). The coefficient of variance of the pen tilt added an additional 3% to the prediction of their organizational abilities.ConclusionsThe results of this study exhibited deficient ability among children with DCD in organizing their behavior in varied real-world tasks requiring generation and monitoring representation related to space and time. The significance of the results to understanding the performance mechanism and implication to the clinical field are discussed.     

Fighting ability influences mate value in late adolescent men

Several studies have demonstrated the relationship between handgrip strength (HGS) and fighting ability in men, which is a relevant trait for intrasexual competition to increase the probability of obtaining a mate. However, few studies have determined a relationship between fighting ability and men’s self-perceived capacity to find, attract and retain a mate. This capacity is a complex compound of several traits that evolutionary psychology has called mate value. In the present study, in a population of late adolescent men from Chile (M ± SD = 16.94 ± .89 years), we explored the relationship between fighting ability, estimated by both HGS and a self-perceived fighting ability questionnaire, and mate value, assessed with a self-perceived mate value components questionnaire. The results show a strong influence of fighting ability on mate value. This influence affects the subscales of “views from the opposite sex”, “sociality” and “relationship history”. However, we did not find an effect on the subscales of “wealth”, “parenting” or “fear to failure”. The relationship between mate value and fighting ability indicates that fighting ability is a relevant component in understanding men’s reproductive behaviour, including intrasexual competition and intersexual selection. This effect was observed in adolescents, who have less mating experience than adults.     

Ability,Foreknowledge, and Explanatory Dependence

Many philosophers maintain that the ability to do otherwise is compatible with comprehensive divine foreknowledge but incompatible with the truth of causal determinism. But the Fixity of the Past principle underlying the rejection of compatibilism about the ability to do otherwise and determinism appears to generate an argument also for the incompatibility of the ability to do otherwise and divine foreknowledge. By developing an account of ability that appeals to the notion of explanatory dependence, we can replace the Fixity of the Past with a principle that does not generate this difficulty. I develop such an account and defend it from objections. I also explore some of the account's implications, including whether the account is consistent with presentism.     

On the asymptotic standard error of a class of robust estimators of ability in dichotomous item response models

In item response theory, the classical estimators of ability are highly sensitive to response disturbances and can return strongly biased estimates of the true underlying ability level. Robust methods were introduced to lessen the impact of such aberrant responses on the estimation process. The computation of asymptotic (i.e., large‐sample) standard errors (ASE) for these robust estimators, however, has not yet been fully considered. This paper focuses on a broad class of robust ability estimators, defined by an appropriate selection of the weight function and the residual measure, for which the ASE is derived from the theory of estimating equations. The maximum likelihood (ML) and the robust estimators, together with their estimated ASEs, are then compared in a simulation study by generating random guessing disturbances. It is concluded that both the estimators and their ASE perform similarly in the absence of random guessing, while the robust estimator and its estimated ASE are less biased and outperform their ML counterparts in the presence of random guessing with large impact on the item response process.     

Changes in studying abilities as perceived by students attending psychotherapy

In rehabilitative psychotherapy, the goal is to support and improve the person's working and studying capacity and to secure his/her staying in or entering the workforce. In this qualitative study, the aim was to describe the changes students experienced in their studying ability and the advancement of their studies as a result of the therapy process. The results of this study showed many kinds of positive changes in the psychological resources and studying ability of students participating in psychotherapy. The results also show that when psychotherapy is arranged with the aim to support the study process, good connections between psychotherapy, study tutoring and career guidance are needed.