键盘操作的工效学研究回顾

对K键盘、分离键盘、TONY键盘、槽式键盘及和弦键盘等的工效特征 (输入效率、肌肉疲劳、EMG特征和主观舒适感 )进行了比较和总结 ,系统地回顾和分析了键盘启动力和听觉反馈等因素对操作者打字力、肌肉活动水平和主观舒适感的影响效应。在总结近几十年相关研究的基础上 ,提出今后应进一步开展键盘启动力、打字速度和反馈方式等方面的研究。     

我国中学生的一般能力因素结构探讨

该研究在对一般能力倾向测验的因素分析基础上,提出了三因素能力结构模型,揭示了中国中学生有一般能力包括。数理能力,知觉能力,心理运动能力三个因素,共８种性向。     

初中一,二年级学生的亲子冲突

本研究选取北京市两所普通中学１９２名初一和初二学生为被试,通过学生对８个方面亲子冲突的评价,探讨初中生亲子冲突的特点。研究发现,（１）初中生早期的亲子冲突处于较低水平;（２）与母亲的冲突多于与父亲的冲突,女生尤其如此;（３）多数亲子冲突随年级而增加;（４）在多数冲突上,男生与父母的冲突多于女生;（５）亲子冲突最多的三个方面为日常生活安排、学业和家务,而冲突最少的为隐私。     

Bimodal emotion congruency is critical to preverbal infants’ abstract rule learning

Extracting general rules from specific examples is important, as we must face the same challenge displayed in various formats. Previous studies have found that bimodal presentation of grammar‐like rules (e.g. ABA) enhanced 5‐month‐olds’ capacity to acquire a rule that infants failed to learn when the rule was presented with visual presentation of the shapes alone (circle‐triangle‐circle) or auditory presentation of the syllables (la‐ba‐la) alone. However, the mechanisms and constraints for this bimodal learning facilitation are still unknown. In this study, we used audio‐visual relation congruency between bimodal stimulation to disentangle possible facilitation sources. We exposed 8‐ to 10‐month‐old infants to an AAB sequence consisting of visual faces with affective expressions and/or auditory voices conveying emotions. Our results showed that infants were able to distinguish the learned AAB rule from other novel rules under bimodal stimulation when the affects in audio and visual stimuli were congruently paired (Experiments 1A and 2A). Infants failed to acquire the same rule when audio‐visual stimuli were incongruently matched (Experiment 2B) and when only the visual (Experiment 1B) or the audio (Experiment 1C) stimuli were presented. Our results highlight that bimodal facilitation in infant rule learning is not only dependent on better statistical probability and redundant sensory information, but also the relational congruency of audio‐visual information. A video abstract of this article can be viewed at https://m.youtube.com/watch?v=KYTyjH1k9RQ     

Acculturation,Economic Stress,Social Relationships and School Satisfaction Among Migrant Children in Urban China

Rural to urban migration has become a prominent phenomenon in China. In linking migration to children’s school trajectories, this mixed-methods study explored a range of cultural and contextual factors that contribute to Chinese children’s school wellbeing in the migratory process. The key variables included acculturative attitudes, economic stress, and relationships with family, teachers and peers. The study drew upon survey data from a sample of 301 Chinese migrant students (4th–9th grade) together with in-depth interviews involving ten selected students focusing on how migrant children’s school happiness and productivity are influenced by acculturation, economic hardship, and social relationships. The quantitative analysis indicated the critical role of integrative states in promoting school satisfaction and achievement. Migrant children with better social relations scored higher levels of hope, which in turn contributed to better school outcomes. Contrary to previous findings, economic stress did not hinder school outcomes for these Chinese migrant children, but appeared to act as a positive motivational factor for pursing academic success. The qualitative analysis echoed the quantitative findings, and provided further explanations for the complexity and particularity of these phenomena.     

Culture and the Structure of Affect: A Bifactor Modeling Approach

This paper tested the impact of culture on the basic structure of affect. It examined positive affect and negative affect at three levels of activation in the U.S. and China. It used a well-suited tool, the bifactor model, to separate the common variance shared by all types of affect from the variance unique to each. The findings indicate that the structure of affect is different cross-culturally. In the U.S., the most fundamental dimension is defined by moderate activation of positive affect and negative affect, which is the largely bipolar dimension of pleasure-displeasure, whereas in China, it is defined by moderate activation of positive affect only, which is pleasure. In both cultures, negative affect across levels of activation forms another important dimension. Beyond these basic dimensions, secondary dimensions are also identified in both cultures: high activation positive affect, low activation positive affect, and low activation negative affect. They form relatively weak unique factors, independent of the two basic dimensions, suggesting that they are largely mixtures of the basic dimensions.     

Common magnitude representation of fractions and decimals is task dependent

Although several studies have compared the representation of fractions and decimals, no study has investigated whether fractions and decimals, as two types of rational numbers, share a common representation of magnitude. The current study aimed to answer the question of whether fractions and decimals share a common representation of magnitude and whether the answer is influenced by task paradigms. We included two different number pairs, which were presented sequentially: fraction–decimal mixed pairs and decimal–fraction mixed pairs in all four experiments. Results showed that when the mixed pairs were very close numerically with the distance 0.1 or 0.3, there was a significant distance effect in the comparison task but not in the matching task. However, when the mixed pairs were further apart numerically with the distance 0.3 or 1.3, the distance effect appeared in the matching task regardless of the specific stimuli. We conclude that magnitudes of fractions and decimals can be represented in a common manner, but how they are represented is dependent on the given task. Fractions and decimals could be translated into a common representation of magnitude in the numerical comparison task. In the numerical matching task, fractions and decimals also shared a common representation. However, both of them were represented coarsely, leading to a weak distance effect. Specifically, fractions and decimals produced a significant distance effect only when the numerical distance was larger.