The role of processes and contents in human memory: An item response theory approach

This study investigated the specificities and communalities of visuospatial and verbal memory contents, as well as short-term memory and working memory (STM and WM) processes with the use of Rasch models as an alternative to the previous studies based on the classical test theory. A sample of 547 undergraduate students executed four computerised tasks, each consisting of verbal-numeric WM, visuospatial WM, verbal-numeric STM, and visuospatial STM content. Confirmatory factor analyses indicated that visuospatial and verbal-numeric memory are distinct, but correlated variables. Findings also support a domain-general view of WM capacity distinct from domain-specific storage. With the use of Rasch models, our results confirm previous experimental, psychometric, and neuropsychological studies, highlighting that memory span tasks can be divided into separate subsystems for content and processes. This study also shows that better results are obtained when models with person parameter estimates (provided from Rasch models) are adopted, rather than summed raw scores.     

Truth table tasks: The relevance of irrelevant

Two types of truth table tasks are used investigating mental representations of conditionals: a possibilities-based and a truth-based one. In possibilities tasks, participants indicate whether a situation is possible or impossible according to the conditional rule. In truth tasks participants evaluate whether a situation makes the rule true or false, or is irrelevant with respect to the truth of the rule. Comparing the two-option version of the possibilities task with the truth task in Experiment 1, the possibilities task yields logical answer patterns whereas the truth task yields defective patterns. Adding the irrelevant option to the possibilities task in Experiment 2 leads to a considerable amount of defective patterns in the possibilities task, but still to more logical patterns in the possibilities task than in the truth task. Experiment 3 shows that directionality matters since rule-to-situation tasks yield more logical answer patterns than do situation-to-rule tasks. We conclude that both task types are not comparable as such since wording, number of options and directionality influence the results.     

The Spiritual Dimension of Caring: Applying a Model for Spiritual Tasks of Ageing

SUMMARY

This chapter describes a spiritual dimension of ageing using themes and a model for spiritual tasks of ageing, developed as a part of doctoral studies that examined spirituality amongst a group of independent-living older adults in Canberra and NSW. This model has been tested further and the model was confirmed through in-depth interviews of residents of nursing homes in the ACT. The first study identified six major spiritual themes from participant interviews. These were: ultimate meaning in life for each person, the way they responded to meaning, self-sufficiency versus despair, moving from provisional to final life meanings, relationship versus isolation in ageing and hope versus despair.     

Comparing acceptance and rejection in the classroom interaction of students who stutter and their peers: A social network analysis

PurposeRecent work has reported adverse effects of students’ stuttering on their social and emotional functioning at school. Yet, few studies have provided an in-depth examination of classroom interaction of students who stutter (SWS). The current study uses a network perspective to compare acceptance and rejection in the classroom interaction between SWS and their peers in secondary education.MethodsThe sample comprised 22 SWS and 403 non-stuttering peers (22 classes) of secondary education in Flanders (Belgium). Students' nominations regarding three acceptance and three rejection criteria were combined. Social network analysis offered procedures that considered direct and indirect interaction between all classmates.ResultsWe found few significant differences: SWS and their peers were distributed similarly across positive and negative status groups. Both considered and were considered by, on average, six or seven classmates as ‘a friend', who they liked and could count on, and nominated or were nominated by one or two classmates as ‘no friend', somebody who they disliked and could not count on. On average, SWS and their classmates also did not differ in terms of structural position in the class group (degree, closeness and betweenness), reciprocated rejection, and clique size. However, SWS do tend to be slightly more stringent or more careful in nominating peers, which led to fewer reciprocated friendships.ConclusionOur results suggest that SWS are quite accepted by peers in secondary education in Flanders. Such positive peer interaction can create a supportive and encouraging climate for SWS to deal with specific challenges.     

Cognitive control acts locally

Cognitive control adjusts information processing to momentary needs and task requirements. We investigated conflict adaptation when participants are performing two tasks, a Simon task and a SNARC task. The results indicated that one congruency effect (e.g., Simon) was reduced after conflict in the other task (e.g., SNARC), but only when both tasks used identical relevant information. On the other hand, when both tasks used different relevant information, a larger congruency effect was observed after conflict in the other task. The results are explained in terms of a local control mechanism.     

Being distinctive versus being conspicuous: The effects of numeric status and sex-stereotyped tasks on individual performance in groups

Being in the numeric minority (e.g., being a solo woman in a group of men) influences how well a person performs within a work group. But being the solo member is only one way in which people can be atypical in a group; a person can also represent a social or demographic category that has not typically been associated with the task that the group is working on. Using a design with four categories of group composition (minority, balanced, majority, homogeneous) and two categories of tasks (sex-typical, sex-atypical) we found that the sex composition of the group interacted with the sex typicality of the task to influence both positive deferrals by group members and individual performance in groups. But, rather than consistently reducing performance as prior research has suggested, being numerically atypical enhanced individual performance when the task was typical for that person’s sex. Further, positive deferrals mediated between the interaction of numeric composition and task typicality in influencing individual performance suggesting that both majority group members and the solo member affect one another’s performance in groups. We conclude by discussing why understanding the interplay between these two sources of stereotyping, numeric composition and task typicality, is important for understanding the social nature of individual performance in groups.     

工作场所欺负的内容结构与测量

采用实证研究的方法对中国文化背景下工作场所欺负（workplace bullying）的内容结构及其测量进行了研究。通过自行研制的工作场所欺负内容问卷,对全国7个城市750名企业员工进行问卷调查,获得了436份有效问卷。探索性因素分析（N=229）表明,我国工作场所欺负内容由人身攻击、工作压制和社会排斥三个维度构成。三因素模型在验证性因素分析（N=207）中得到了较好地验证。内部一致性分析和回归分析的结果也表明,基于我国文化背景下编制的工作场所欺负问卷具有较好的信度和效度,其对员工情感承诺和离职意向等具有一定的预测作用。     

高功能孤独症儿童的合作行为

合作行为是一种重要的亲社会行为, 对儿童的社会适应具有重要意义, 而孤独症儿童的典型特征是社会功能存在缺陷, 从而导致合作行为的缺乏。以往研究未能就孤独症儿童在不同合作任务类型中的表现做出区分, 本研究采用经典的囚徒困境博弈和合作性工具任务比较了6~12岁的高功能孤独症儿童和正常发展儿童在不同任务中的合作行为。结果显示高功能孤独症儿童和正常儿童在囚徒困境中的合作行为没有显著差异, 然而, 他们在工具性任务中表现出比正常儿童更低水平的合作行为。这说明高功能孤独症儿童在对认知能力有不同要求的合作任务中的表现不同。     

Infra-humanization: Ambivalent sexism and the attribution of primary and secondary emotions to women

Leyens and colleagues (e.g., Leyens et al., 2001) have observed that people are more likely to attribute uniquely human (secondary) emotions to the in-group than to the out-group. We examined whether males and females differentially attribute primary and secondary emotions to women. We hypothesized that individual differences in hostile sexism (HS) and benevolent sexism (BS), rather than participant sex, would predict the attribution of emotions to women. As expected, high BS individuals were more likely to attribute positive secondary emotions to women than low BS individuals. In contrast, high HS individuals were more likely to deny positive secondary emotions to women than low HS individuals. Participant sex was not related to the attribution of emotions to women after the effects of HS and BS were accounted for.