The role of R-S1 expectancy in discrimination and discrimination reversal learning

Four experiments assessed the role of response-reinforcement (R-S¹) expectancy as rats either learned a discrimination or a discrimination reversal. Experiment 1 showed that the higher the percentage of reinforcement during nondiscriminative pretraining the more quickly a subsequent discrimination is learned. Experiment 2 demonstrated that the overlearning reversal effect (ORE) can be obtained even though the overtraining phase consists of responses to a single neutral card. In Experiment 3 subjects were again overtrained on a single neutral stimulus under conditions of varying reinforcement. ORE was apparent under reinforcement of a high percentage of responses but was not apparent under reinforcement of a low percentage. Experiment 4 revealed that the fewer errors a subject makes prior to reversal the better its reversal performance is. Results of these studies were discussed in terms of generalized attention theories and the expectancy notions of Bolles (Psychological Review, 1972, 79(5), 394–409.     

小学二年级学生汉语阅读知觉广度的眼动研究

小学生阅读知觉广度是阅读发展心理学中的一个基本问题。本研究以Eyelink 1000 plus眼动仪为工具,采用2（年龄）×5（窗口）的两因素混合实验设计,考察小学二年级学生汉语阅读的知觉广度。结果显示,二年级学生的知觉广度为右侧1-2个汉字。二年级小学生快慢读者在眼动指标上存在差异,但未发现在知觉广度上存在差异。阅读能力测验与眼动指标存在显著的相关,此外小学二年级学生的阅读速度可以预测学业成绩。     

The initial stage of the international sojourn: excitement or culture shock?

This paper presents findings from an ethnographic study of the adjustment journey of international postgraduate students at a university in the South of England, which involved interviews and participant observation over a 12-month academic year. It was discovered that the initial stage of the sojourn1 was not characterised by feelings of excitement, as suggested by the U-curve model (and its successors): though such feelings were present, they were overwhelmed by negative symptoms more commonly associated with culture shock. The implications of these findings for support structures in higher education are discussed.     

Effects of classroom organization on letter-word reading in first grade

Teacher organization is a crucial part of classroom functioning; however, its relation to student achievement has not been investigated as extensively as that of instruction. In this study, organization is defined as the amount of time teachers spend explaining the purpose and procedures of learning activities and daily routines. Data from first-grade classrooms (N = 44) observed three times during the school year (fall, winter, and spring) are analyzed, along with students' (N = 108) literacy skills at fall and spring. Hierarchical Linear Modeling reveals that, controlling for students' fall word reading and vocabulary skills, as well as amount of language arts instruction they receive, both amount and change in amount over time in classroom organization significantly predicts spring word reading skills. Specifically, children in classrooms observed in higher amounts of classroom time in organization at the beginning of the school year, followed by sharp decreases over the school year, demonstrated stronger letter and word reading skills by spring, and this was a main effect (p < .05). Practical and research implications are discussed.     

医务人员在医疗活动中的利益边界与道德责任分析

当今是一个以利益为轴心的时代,利益伦理是医学伦理学不可忽视的课题。欲望是无穷的,利益是有限的,任何利益都有其边界和限度,我们必须设置利益的道德界限。医患双方未能遵守利益限度和利益边界原则,使矛盾转化为冲突。利益冲突不仅影响医生的专业判断,而且影响了其医疗决定。医生既是医疗职业者,也是社会的一员,社会公众利益最大化是医疗服务的基本目标,为病人最大利益着想是医护专业最根本的道德规范与责任。     

A consequence of school grade labels: preservice teachers’ interpretations and recall of children’s classroom behavior

This study investigated whether preservice teachers’ attitudes surrounding school grade labels influenced interpretations and recall of children’s classroom behavior using the automatic attitude activation model (Fazio, In R. M. Sorrentino & E. T. Higgins (Eds.), Handbook of motivation and cognition: Foundations of social behavior, 1986) as a theoretical framework. Participants were randomly assigned to one of three conditions: The expectation of viewing a video of children in schools labeled as “A,” “F,” or “typical” as a result of the school’s aggregated student performance on standardized tests. Results indicated that participants who believed that they were viewing a video of an “F” classroom recalled more negative and fewer positive behaviors compared to the “typical” classroom. Likewise, there was a trend for participants to recall more negative and fewer positive behaviors when viewing a video of an “F” compared to an “A” school. Therefore, negative attitudes about a school label of “F” biased preservice teachers’ perceptions and memories of children’s classroom behaviors.

The relationship of GMA to counterproductive work behavior revisited

Recent research reported that general mental ability (GMA) predicted counterproductive work behavior (CWB), whereas some previous studies failed to find such a relationship. We tested occupational homogeneity of the sample and criterion measurement as two potential explanations for these inconsistencies. Study 1 replicated major design features of one previous study, which found no GMA–CWB relation in a heterogeneous sample, with occupationally homogeneous groups. Results confirmed previous null findings, indicating no effect of sample homogeneity. In Study 2, using a controlled laboratory setting, GMA was again unrelated to self‐reported CWB, but partially predicted observed CWB negatively. Combined findings suggest that GMA is consistently unrelated to CWB self‐reports but may predict objectively measured CWB independently of the likelihood of being caught. Copyright © 2009 John Wiley & Sons, Ltd.     

Conscientiousness and achievement motivation predict performance

A prospective survey was conducted to identify predictors of university students' grade point average (GPA) using separate samples of female (N = 472) and male (N = 142) students over 9 months. Big five personality traits and achievement motivation were measured. Correlations show that conscientiousness (C) and achievement motivation explained variation in GPA. Latent variable structural equation modelling showed that the effect of C on GPA is fully mediated by achievement motivation for both female and male students. Invariant factor and structural mediation models across the female and male groups are also reported. Finally, the mediation model is shown to remain significant after scholastic achievement is controlled. The findings are interpreted within the framework of Neo‐Socioanalytic theory. Copyright © 2009 John Wiley & Sons, Ltd.     

群体偏好与年级对小学生利他惩罚行为的影响

采用独裁者博弈（DG）探讨了群体偏好对不同年级小学生利他惩罚行为的影响。研究1对450名小学生利他惩罚行为的年级发展特点进行了测查。研究2以168名小学生为被试,考察了在独裁者博弈中与独裁者的关系、性别与年级对小学生（第三方）利他惩罚行为的影响。研究3以180名小学生为被试,考察了在独裁者博弈中与接受者的关系、性别与年级对小学生（第三方）利他惩罚行为的影响。结果发现：（1）利他惩罚行为在1至3年级之间有显著增长,3至5年级之间不仅没有增加反而有所下降。（2）3年级小学生开始表现出明显的群体偏好。（3）利他惩罚行为的性别差异不明显,与女生比男生更利他的预期相左。结论：小学生至少在6岁就已经出现了利他惩罚行为且逐渐表现出群体偏好;小学生道德行为发展中可能存在“3年级现象”;女生可能更愿意通过非惩罚的方式达成公平。     

基于等级反应模型的多水平多侧面评分者模型

国内外考试改革和大型测评实践越来越强调主观题的作用,则评分者信度研究又重新成为一个备受关注的议题。研究在Wang和Liu（2007）的广义多水平侧面模型基础上,提出并探讨了等级反应多水平侧面模型。结果表明：在评分者固定效应和随机效应两种实验条件下,各偏差值的均值与标准差均较小,说明模型在当前实验条件下,各参数估计值的返真性和稳健性均较好,可以检测出评分者效应,由此,后续可进一步加入评分者效应的影响因素,使其发展为可同时检测评分者效应及其影响因素的完整模型。