中文读写能力及其相关因素研究

使用5点量表,本研究在北京地区调查了2187名小学一、三、五年级儿童的中文读写能力及其相关因素。因素分析抽取了8个因素：书面语意义理解、基本知觉能力、书写技能、家庭阅读背景、动作技能、口语能力、朗读和听写、书面表达。对上述因素进行多元逐步回归分析发现,各种读写能力内部相关显著。基本知觉能力、口语能力、家庭阅读背景和动作技能分别对中文读写能力的不同成分有显著解释作用。这个结果对于理解阅读能力发展及其与家庭阅读背景、口语、基本知觉一动作能力之间的关系,以及阅读障碍的内在机制具有重要的理论意义。     

Sex differences in object location memory and spatial navigation in Long-Evans rats

In both humans and rodents, males typically excel on a number of tasks requiring spatial ability. However, human females exhibit advantages in memory for the spatial location of objects. This study investigated whether rats would exhibit similar sex differences on a task of object location memory (OLM) and on the watermaze (WM). We predicted that females should outperform males on the OLM task and that males should outperform females on the WM. To control for possible effects of housing environment, rats were housed in either complex environments or in standard shoebox housing. Eighty Long-Evans rats (40 males and 40 females) were housed in either complex (Complex rats) or standard shoebox housing (Control rats). Results indicated that males had superior performance on the WM, whereas females outperformed males on the OLM task, regardless of housing environment. As these sex differences cannot be easily attributed to differences in cognitive style related to linguistic processing of environmental features or to selection pressures related to the hunting gathering evolutionary prehistory of humans, these data suggest that sex differences in spatial ability may be related to traits selected for by polygynous mating strategies.     

Evidence for serial coercion: a time course analysis using the visual-world paradigm

Metonymic verbs like start or enjoy often occur with artifact-denoting complements (e.g., The artist started the picture) although semantically they require event-denoting complements (e.g., The artist started painting the picture). In case of artifact-denoting objects, the complement is assumed to be type shifted (or coerced) into an event to conform to the verb's semantic restrictions. Psycholinguistic research has provided evidence for this kind of enriched composition: readers experience processing difficulty when faced with metonymic constructions compared to non-metonymic controls. However, slower reading times for metonymic constructions could also be due to competition between multiple interpretations that are being entertained in parallel whenever a metonymic verb is encountered. Using the visual-world paradigm, we devised an experiment which enabled us to determine the time course of metonymic interpretation in relation to non-metonymic controls. The experiment provided evidence in favor of a non-competitive, serial coercion process.     

Cognitive effects of racial diversity: White individuals’ information processing in heterogeneous groups

Two experiments tested the hypothesis that mere anticipation of membership in a racially heterogeneous group can lead White individuals to exhibit more thorough information processing. In Study 1 White participants who expected to discuss a race-relevant topic with a racially diverse group exhibited better comprehension of topical background readings than did Whites assigned to all-White groups. Study 2 replicated these results and indicated that the processing effects were attributable in part to an increase in race-relevant thought activation among White individuals in a diverse setting. No such anticipatory effects of racial composition were observed for Whites expecting to discuss race-neutral topics. Taken together, these studies render untenable the assumption that the observable effects of racial diversity are wholly attributable to the novel contributions of non-White group members. More generally, they emphasize the need for additional empirical investigation of the cognitive processes through which racial heterogeneity influences individual and group performance.     

The Effects of Weight Loss Attempts, Exercise Initiation, and Dietary Practices on Health Related Quality of Life

This study (N = 98) randomly placed participants in either a higher protein or American Heart Association diet group with each group initiating an aerobic exercise program. Body composition (BC) was measured using four different methodologies (DEXA, BIA, skinfold, BMI) along with height and weight, while Health-Related Quality of Life (HRQOL) changes were measured using the Medical Outcomes Short Form 36 (SF-36). There were no significant time/diet interactions in HRQOL scores, body fat measures, and weight with the exception of Role-Physical scores (p = .006) with posttest scores higher in participants in Diet 1. Role-Physical scores changed significantly in participants in Diet 1 (p = .0001) and Diet 2 (p = .026) with higher posttest scores in each group. Social functioning had a significant main effect for time in both groups with pretest scores in both diet groups lower than their respective posttest scores (p = .015). HRQOL pretest scores were not significantly different between groups at baseline (p = .56). ANOVA revealed no significant differences in average calories between groups (p = .88). Analysis revealed no differences in exercise in minutes (p = .66) nor statistically significant changes in BC or weight (p = .65). Conclusions: Improvements in HRQOL were demonstrated in two subscales related to physiological and psychological functioning. These novel findings add to literature suggesting that HRQOL, at least concerning social functioning, work and other daily activities (Role-Physical) may improve by initiating an exercise and dietary program even when weight loss or BC improvements have been unsuccessful.     

A lateralization of function approach to sex differences in spatial ability: a reexamination

The current study assessed the lateralization of function hypothesis (Rilea, S. L., Roskos-Ewoldsen, B., & Boles, D. (2004). Sex differences in spatial ability: A lateralization of function approach. Brain and Cognition, 56, 332–343) which suggested that it was the interaction of brain organization and the type of spatial task that led to sex differences in spatial ability. A second purpose was to evaluate explanations for their unexpected findings on the mental rotation task. In Experiment 1, participants completed the Water Level, Paper Folding, and mental rotation tasks (using an object-based or self-based perspective), presented bilaterally. Sex differences were only observed on the Water Level Task; a right hemisphere advantage was observed on Water Level and mental rotation tasks. In Experiment 2, a human stick figure or a polygon was mentally rotated. Men outperformed women when rotating polygons, but not when rotating stick figures. Men demonstrated a right hemisphere advantage when rotating polygons; women showed no hemisphere differences for either stimulus. Thus, hemisphere processing, task complexity, and stimulus type may influence performance for men and women across different spatial measures.     

7～9岁儿童失言理解与执行功能的关系

为了说明学龄儿童心理理论与执行功能的关系,研究采用失言理解、威斯康星卡片分类和汉诺塔任务分别考察了90名7—9岁儿童的心理理论和执行功能。结果表明,失言理解与抑制-转换能力相关显著（r=0．34,P〈0．01）,但是与计划能力相关不显著（r=0．06,P〉0．05）。在控制年龄后,失言理解与抑制-转换能力的相关仍然显著（r=0．29,P〈0．05）。研究结果说明,学龄儿童心理理论与执行功能的相关模式与学龄前儿童完全一致,提示心理理论与执行功能的相关关系从学龄前延续到了学龄阶段。     

“<Emphasis Type="Italic">Do the very best you can</Emphasis>”: The third-grade class test

The aim of this study was to examine third-graders’ test situations such as they appeared in the day-to-day functioning of the school. The research was ethnographic, focusing on the test situations of one third-grade class in the mother tongue and mathematics during one school year. Our analyses suggest that third-graders no longer see the test practices as objects of learning but rather as a familiar part of their everyday schoolwork. The test-taking practices have been mastered, but preparation for the test still needs to be emphasized and practised. And, according to our findings, cheating is an object of practice as well. To third-graders, test situations appear as ‘real tests’: the evaluative import of these situations seems clear to them. The teacher and the school institution reach for maximal proficiency and performance so as bring out the pupils’ ‘pure’ ability and performance in the class test. The class teacher must deal with the ever-strengthening evaluative significance of the test in relation to both the pupils and the school administration: we find that in the test situation the class teacher creates a social-psychological we-group—an alliance of the teacher and the pupils versus the test writer—as comes out particularly clearly in connection with national tests. The findings of the study are discussed with special reference to the ways in which the class test constructs the selective-restrictive sphere of education.     

西北民族地区中学生心理地位与人际交往能力的关系研究

以西北民族地区甘南藏族自治州的1所多民族混合学校、1所单一少数民族学校以及兰州市1所普通中学的521名中学生为被试,采用心理地位量表和中学生人际交往能力问卷,探讨不同学校类型中学生心理地位和人际交往能力的关系。结果表明:(1)西北民族地区藏汉混合学校学生的心理地位显著高于单一民族中学的学生,但与普通中学的学生之间不存在显著差异;(2)西北民族地区藏汉混合学校学生人际交往能力得分显著高于单一民族中学的学生,但与普通中学学生之间差异不显著;(3)西北民族地区中学生的心理地位与人际交往能力之间存在显著相关;(4)西北民族地区中学生的心理地位特征能够较好地预测其人际交往能力的发展水平。     

数学能力与问句位置对小学生数学结构不良应用题表征的影响

对小学四年级高低数学能力学生各40名,呈现问句前置和问句后置两种形式的结构不良应用题,探讨两种被试在问句前置时对应用题的内在表征形式倾向.结果发现,两种被试在问句前置时阅读条件句的总时间比问句后置时显著降低,解题时间显著降低,但高能力被试阅读有关条件句的时间在总阅读时间中的比例显著增高,解答成绩显著提高,而低能力被试相关时间比反而显著下降、解答成绩没有显著提高.这表明,高能力被试建构问题模型与情境模型,而低能力被试只建构问题模型.