Gray Matter Atrophy in the Cortico-Striatal-Thalamic Network and Sensorimotor Network in Relapsing–Remitting and Primary Progressive Multiple Sclerosis

Neuropsychology Review - Gray matter atrophy in multiple sclerosis (MS) is thought to be associated with disability and cognitive impairment, but previous studies have sometimes had discordant...     

Correction to: Gray Matter Atrophy in the Cortico‑Striatal‑Thalamic Network and Sensorimotor Network in Relapsing–Remitting and Primary Progressive Multiple Sclerosis

Neuropsychology Review - A correction to this paper has been published: https://doi.org/10.1007/s11065-021-09503-6     

Effectiveness of Family Systems Theory Interventions on Adolescents with Type 1 Diabetes: A Meta-analysis

The purpose of this review is to synthesize the evidence and determine the efficacy of interventions based on family systems theory in diabetes-related family conflict, self-management, and glycemic control among adolescents with type 1 diabetes. A systematic search of five English databases was conducted. Interventions based on family systems theory in adolescents with type 1 diabetes that reported diabetes-related family conflict, self-management, and glycemic control as outcome variables were included. A total of 14 articles from ten interventions were included. Meta-analysis results revealed that, compared to adolescents who received usual care, adolescents who received family systems theory interventions reported fewer diabetes-related family conflicts with a medium effect size of 0.32 (p?<?0.05), but there was no significant improvement on self-management or glycemic control (p?>?0.05). Family systems theory interventions appear to have beneficial effect on reducing diabetes-related family conflicts for adolescents with type 1 diabetes. Adolescents who have type 1 diabetes and their families may need multidimensional psychosocial programs accompanied by diabetes education to improve glycemic control.

     

针对微测评理念的自适应测验技术——基于CO-MIRT诊断模型

前人研究业已表明MIRT模型在自适应测验等诸多领域的测量优势,但面对当前国内教育行业在实践过程中的现状,仍无法有效地解决待测知识点数量、试题数量和测量精度之间的矛盾。对此,本次研究设计了CO-MIRT模型,经由前馈层、全连接层的操作以共享试题之间所传递的信息,以及通过控制层、L2正则化等操作来限制小样本测验下的过拟合,来达到降低估计误差的目的。本次研究采用蒙特卡洛模拟的方式验证了模型效果,并使用数学推演的方式给予理论上的证明。     

认知诊断Q矩阵估计(修正)方法

Q矩阵代表着项目考察的属性, 反映了项目的重要特征, 其正确性是影响认知诊断分类准确性的关键因素。研究Q矩阵估计(修正)方法具有重要价值。首先, 研究从是否采用认知诊断模型将Q矩阵估计(修正)分为基于认知诊断模型视角下的参数化方法和基于统计视角下的非参数方法。然后, 分别从最优项目质量、最优模型数据拟合和参数估计视角对它们进行分类介绍, 评析不同方法的特征和表现、区别与联系、优势与不足。最后, 提出几个未来研究问题：在复杂测验条件下系统比较各种方法; 校准知识状态和参数估计误差、结合多种思路和方法等多角度提出Q矩阵估计(修正)方法; 研究多级评分项目、混合测验模型、属性多级、属性个数未知甚至Q矩阵元素为连续变量等条件下的Q矩阵估计(修正)方法。     

Logic for Describing Strong Belief-Disagreement Between Agents

The result of an interaction is influenced by its epistemic state, and several epistemic notions are related to multiagent situations. Strong belief-disagreement on a certain proposition between agents means that one agent believes the proposition and the other believes its negation. This paper presents a logical system describing strong belief-disagreement between agents and demonstrates its soundness and completeness. The notion of belief-disagreement as well as belief-agreement can facilitate gaining a clearer understanding of the acts of trade and speech.     

Asymmetric goal contagion: Social power attenuates goal contagion among strangers

Goal contagion is an important interpersonal process. As people spontaneously infer and adopt others' goals, goals can be said to “flow” among individuals. We find that possessing power attenuates goal contagion, especially for high perspective takers. In a pilot study (N = 157), we first affirmed the interpersonal nature of goal contagion by establishing that high (vs. low) perspective takers were more likely to engage in goal contagion. We then tested the moderating role of power in two studies. In both neutral (Study 1, N = 179) and low power (Study 2, N = 304) conditions, we replicated the pattern in the pilot study. In the high power conditions, however, neither low nor high perspective takers engaged in goal contagion. Our findings suggest that goals flow asymmetrically from the powerful to the powerless, which may constitute an important means through which power hierarchy and group cohesion are maintained.     

Dynamics between Member Replacement and Team Performance: The Role of Members’ Relative Attributes

Analysing the 367 member replacement acts in the 2014 FIFA World Cup tournament, we uncover important dynamics between member replacement and team performance. We find that poor team performance leads to substitutions with more competence gains (or with less competence loss), that substituting and substituted members’ functional background dissimilarity improves subsequent content‐related team performance (i.e. scoring more goals), and that their competence superiority is associated with the speed of team performance turnaround (i.e. scoring goals faster). Going beyond contrasts between teams with and without membership change, the paper highlights the importance of substituting and substituted members’ relative task‐related attributes and provides a more nuanced understanding of the complex phenomenon of team membership change. Furthermore, the paper extends the methodological spectrum of dynamic team composition research from predominantly laboratory experiments with short‐lived student groups performing cognitive tasks to field studies with real‐life work teams performing action tasks.     

Linking Job Work Hours to Women’s Physical Health: The Role of Perceived Unfairness and Household Work Hours

Although the relationship between job work hours and women’s physical health has been examined, limited empirical research examines the family demand conditions that explain this relationship. Given the challenge of integrating work and family demands, we examine the boundary conditions under which job hours relate to women’s physical health by integrating the influences of household work hours, perceived unfairness of division of household labor, and traditional gender ideology. Using a large, multi-national archival dataset, our results show that women working long job hours are more likely to report decreased physical health and that this relationship is moderated by the hours and fairness perceptions of household labor: The lowest physical health was observed at high job hours and high household hours and also when women felt that they did less than their fair share of household labor. However, looking at the slopes of these relationships, the negative relationship between job hours and physical health was stronger when women worked lower household hours or felt that they contributed less than their fair share of household labor—suggesting that maintaining a contribution to household labor might be important for working women. Furthermore, these results suggest that policy and organizational interventions aimed at supporting women’s physical health could take their household labor contributions and fairness perceptions into account when assessing the negative impact of high job work hours.     

Response styles in factual items: Personal,contextual and cultural correlates

This study investigated response styles in factual items and explored their associations with personal, contextual and cultural factors. Responses on various factual questions, cognitive tests and interviewers' observational data from a total of 152,514 respondents in 22 countries in the Programme for the International Assessment of Adult Competencies (PIAAC) were analysed. Indexes of extreme, midpoint and acquiescent response styles were extracted from Likert‐scale and dichotomous responses of factual items. A general response style (GRS) with a positive loading of extreme response style and negative loadings of midpoint and acquiescent response styles was confirmed. This factor showed a similar cross‐cultural patterning as another general factor from attitudinal and self‐evaluative items of Likert scales in a previous study, which indicated the pervasiveness of response styles irrespective of types of survey items. In a multilevel analysis, the individual‐level GRS was found to be negatively related to being male, educational level and literacy competency, and positively related to 3rd‐person presence and background noise, and at country level negatively associated with socioeconomic development. Cross‐level interactions were also found. Implications on the pervasiveness and nature of response styles are discussed.