幼儿加减法运算中的策略发展特点

本研究随机选取北京市三所普通幼儿园小、中、大班儿童共90名,采用实物操作的非言语任务,考察3-5岁幼儿在加减法运算中的策略发展特点。结果表明:随着年龄的增长,儿童使用的策略由模仿、交换向内化、相反数策略转化;3、4岁幼儿在相反数题中,更多使用模仿和交换策略,而5岁幼儿更多使用模仿、相反数策略;在标准型题中,儿童一般较多使用模仿和内化策略;最大表征对儿童策略选择存在影响。     

Do secondary school students make use of effective study strategies when they study on their own?

Although there is a large body of evidence for the utility of particular study strategies such as retrieval practice and distributed practice as memory‐enhancing instruments, they are seldom used by learners in educational practice. Thus far, the research on the use of these study strategies has focused only on undergraduate university students, oftentimes only investigating a set of predefined strategies. The question, thus, remains whether these results are generalisable to secondary school students. The present study is the first to explore the use of different study strategies by secondary school students. With the use of an open question, 316 secondary school students from three different secondary school levels were asked how they prepare for an exam when they are studying by themselves. The results show that secondary school students use study strategies considered to be suboptimal. In the discussion, we compare our findings with results of previous studies among undergraduate university students.     

Henk ten Have: Global bioethics: an introduction

Theoretical Medicine and Bioethics -     

Utilizing Staff Incentives to Increase School-Wide Praise

The authors evaluated whether an incentive raffle increased teachers' use of written praise and appropriate student behavior. Participants included 93 staff members and 755 students at an elementary school in Central Illinois. School staff received didactic instruction for the importance of using praise, and praise notes were measured on a weekly basis by praise type, staff member type, and student type. Results indicated that the faculty incentive produced medium effects for praise for students, but did not impact the number of office discipline referrals. Staff members reported praise notes to be an acceptable school-wide system for managing student behavior, but had mixed feelings regarding faculty receiving incentives for writing praise notes. Implications as well as future research are discussed.     

Perceived emotion suppression and culture: Effects on psychological well‐being

Whether the negative effects of emotion suppression on psychological well‐being are applicable cross‐culturally is a long‐debated topic. The present study attempted to shed light on this debate, focusing on the effects of perceived emotion suppression and examining the psychological processes leading from perceived emotion suppression to lower psychological well‐being. We used a scale manipulation to lead 196 American and 213 Chinese participants to perceive themselves as having suppressed their emotions to a greater or lesser extent and then measured their life satisfaction. As expected, both the American and Chinese participants reported lower life satisfaction in the high‐suppression condition than in the low‐suppression condition; this negative effect was mediated by positive affect and moderated by self‐esteem. Specifically, perceived high emotion suppression decreased positive affect, which in turn led to lower well‐being. This effect was observed only for those with low self‐esteem, but the patterns and mechanisms were consistent cross‐culturally.     

Further examination of video‐based preference assessments without contingent access

The first purpose of this study was to attempt to replicate previous findings that video‐based preference assessments without access to selected stimuli may accurately predict relative reinforcing efficacy of stimuli. To do this, we conducted a concurrent operant reinforcer assessment in which we evaluated the relative reinforcing value of highly preferred and less preferred items identified in a video‐based preference assessment. The second purpose of this study was to begin to evaluate the potential behavioral mechanisms responsible for the validity of this assessment. To conduct this analysis, we evaluated the relative reinforcing value of those same stimuli depicted in video format and then compared results to results obtained during the reinforcer assessment for tangible stimuli. For all five participants, stimuli identified as highly preferred functioned as reinforcers, and four of five participants, responding during the reinforcer assessment was similar in the presence of tangible stimuli and videos depicting those stimuli.     

Tactile-Based Pantomime Grasping: Knowledge of Results is Not Enough to Support an Absolute Calibration

Tactile-based pantomime-grasping requires that a performer use their right hand to ‘grasp’ a target previously held in the palm of their opposite hand – a task examining how mechanoreceptive (i.e., tactile) feedback informs the motor system about an object property (i.e., size). Here, we contrasted pantomime-grasps performed with (H+) and without (H?) haptic feedback (i.e., thumb and forefinger position information derived from the grasping hand touching the object) with a condition providing visual KR (VKR) related to absolute target object size. Just-noticeable-difference (JND) scores were computed to determine whether responses adhered to – or violated – Weber's law. JNDs for H+ trials violated the law, whereas H? and VKR trials adhered to the law. Accordingly, results demonstrate that haptic feedback – and not KR – supports an absolute tactile-haptic calibration.     

Alterity,Analectics, and the Challenges of Epistemic Decolonization

This essay explores some conceptual and diagnostic frameworks to advance epistemic decolonization in the US philosophical profession. A central focus is the distinction between those philosophies of formerly colonized peoples that are culturally alterior or, simply, alterior and those that are analectical in the Dusselian sense of emerging from a subordinated political position. The paper begins by reflecting upon connections between coloniality, the alterior, and the analectical to frame the discussion of epistemic decolonization in the philosophy profession. It then considers a knower's core theoretic reconstruction in the task of epistemic decolonization and identifies some ambiguities in reconciling alterior traditions with analectical theoretical reconstruction. The work of Charles Mills and Enrique Dussel are considered as case studies. The paper concludes with critical reflections on the institutional network of canon, curriculum, and other conceptual and credentialization structures that constitute institutional Eurocentrism.     

The influence of perceived warmth and competence on realistic threat and willingness for intergroup contact

Unwillingness for contact with outgroup members is a form of prejudice. In two studies, we tested the proposition that perceived competence has an indirect effect on willingness for intergroup contact through its effect on realistic threat, and that perceived warmth moderates this relationship. In Study 1, Hong Kong students (N = 144) rated the perceived warmth and competence of an outgroup, Mainland Chinese students, as well as the extent to which they perceived the group as presenting a realistic threat, and willingness for contact with them. In Study 2 (N = 205), we attempted to manipulate the warmth (high vs. low) and competence (high vs. low) of an unfamiliar outgroup, and tested the effects on realistic threat and willingness for intergroup contact. In both studies, we found an interaction effect between warmth and competence in the prediction of realistic threat. When the outgroup was perceived as warm, competence was found to have a negative association with realistic threat (Study 1), whereas when the outgroup was perceived as lacking warmth, competence was found to have a positive association with realistic threat (Study 2). In both studies, perceived warmth moderated the indirect effect of perceived competence on willingness for intergroup contact. Implications for the role of warmth and competence stereotypes in threat perception and prejudice are discussed.