对物理概念图填图试题的应用研究

文章详细介绍了物理概念图填图试题的出题样式和评分的具体方法,并对物理概念图填图试题的难度、区分度、信度和效度进行了检验,计算了物理概念图填图试题与传统物理题型共同组成的期末物理测验的信度。研究表明物理概念图填图试题的得分与传统测验题型的得分呈显著正相关,物理概念图填图试题的得分对传统测验题型的得分有显著的预测力。     

Error feedback and the acquisition of geographical representations

Three training conditions were compared in a task of learning locations of cities on a map: One in which participants could avoid errors by searching for the name of the correct city, and two others in which either immediate feedback after each response or delayed feedback after all responses had been made was given. Learners who received feedback only after placing all the cities on the map performed more poorly overall during training but outperformed the other two groups in both immediate and delayed tests. This advantage is interpreted as evidence of differential development of relational knowledge and application of cognitive effort across training conditions. Copyright © 2007 John Wiley & Sons, Ltd.     

Chinese children excel on novel mathematics problems even before elementary school

ABSTRACT— Kindergartners in China showed greater numerical knowledge than their age peers in the United States, not only when tested with arithmetic problems, which Chinese parents present to their children more often than U.S. parents do, but also when tested with number-line estimation problems, which were novel to the children in both countries. The Chinese kindergartners' number-line estimates were comparable to those of U.S. children 1 to 2 years more advanced in school. Individual differences in arithmetic and number-line-estimation performance were positively correlated within each country. These results indicate that performance differences between Chinese and U.S. children on both practiced and unpracticed mathematical tasks are substantial even before the children begin elementary school.     

Development of the brief Spanish Cocaine Craving Questionnaire-General

Combining two different samples of cocaine users (N = 183), we tested the factor structure of a brief (12-item), Spanish version of the Cocaine Craving Questionnaire-General using confirmatory factor analysis. The four-factor model provided excellent fit to the measure. Moreover, the measure significantly differentiated between recent cocaine users and abstainers, as well as between participants with different levels of severity of drug-use history. Factor 1 expresses highly intense and overwhelming desires, Factor 2 expresses lack of self-control over cocaine use, Factor 3 items express lack of positive reinforcement expectancies, and Factor 4 expresses stimulating expectancies for cocaine use. The results revealed the validity of the CCQ-General brief as an instrument to assess cocaine craving in Spanish and supported the conceptualization of cocaine craving as a multifaceted construct.     

Using latent semantic analysis to assess reader strategies

We tested a computer-based procedure for assessing reader strategies that was based on verbal protocols that utilized latent semantic analysis (LSA). Students were given self-explanation—reading training (SERT), which teaches strategies that facilitate self-explanation during reading, such as elaboration based on world knowledge and bridging between text sentences. During a computerized version of SERT practice, students read texts and typed self-explanations into a computer after each sentence. The use of SERT strategies during this practice was assessed by determining the extent to which students used the information in the current sentence versus the prior text or world knowledge in their self-explanations. This assessment was made on the basis of human judgments and LSA. Both human judgments and LSA were remarkably similar and indicated that students who were not complying with SERT tended to paraphrase the text sentences, whereas students who were compliant with SERT tended to explain the sentences in terms of what they knew about the world and of information provided in the prior text context. The similarity between human judgments and LSA indicates that LSA will be useful in accounting for reading strategies in a Web-based version of SERT.     

Mental health care for Hispanic Americans: a current perspective

In this article, the authors review patterns and challenges in the conceptualization, implementation, and academic support of the mental health services of Hispanic Americans. A critical analysis was conducted on information obtained through manual and computerized searches of published literature and conference reports. New clinical care approaches include the DSM-IV's cultural formulation with its complement of standardized multiaxial diagnosis, integration of services across clinical disorders or conditions and across sources of care, as well as pluralistic criteria and judges for service outcome appraisal. Emerging clinical approaches offer an opportunity to enhance the mental health care of Hispanic Americans within an increasingly multicultural U.S. society.     

Somatization, psychiatric disorder, and stress in utilization of ambulatory medical services

Examined the prediction from Mechanic's (1972) attribution theory of somatization that somatizers who are under stress will overuse ambulatory medical services. Two hundred fourteen volunteer patients from university ambulatory care clinics completed the Diagnostic Interview Schedule and the Life Experiences Inventory. We examined somatization, psychiatric diagnoses, and life stress-and the interaction of these factors-in predicting frequency of medical visits during the preceding year, after controlling for need (active medical problems) and predisposing factors. As hypothesized, life stress interacted with somatization in predicting number of medical visits; somatizers who were under stress made more visits to the clinics than did nonsomatizers or somatizers who were not under stress. Although stress affected somatizers most, stress was predictive of increased medical utilization for all patients. These results suggest that psychological services intended to reduce overutilization of outpatient medical services might best focus on stress reduction and be most beneficial to somatizers.     

声旁规则性对命名声旁和整字的影响

探讨声旁规则性对命名声旁或整字的影响,在速示与慢示呈现条件下命名声旁或汉字。结果发现：（1）声旁命名在速示呈现时因规则声旁易化;慢示呈现时无显著规则性效应,但受声旁部件数影响;（2）在两种呈现条件下,命名含不表音声旁字的反应时最快,错误率最低;命名含单部件、高频声旁字的反应时慢,错误率高;命名含多部件、低频声旁字的反应时快,错误率低。说明是声旁规则性对声旁命名有易化作用;对整字命名有干扰作用,但与声旁频率与部件数有关。     

注意分散对虚假再认的影响

采用DRM范式研究学习阶段不同的注意水平对关联性记忆错觉的影响。结果表明随着注意水平的降低,对学过项目的正确再认率显著下降。对关键诱饵的虚假再认率不易受注意分散的影响。正确再认和虚假再认的记得成分相似,但知道成分的变化趋势不同。虚假再认比正确再认的感知觉细节少。     

Subtypes of drug-addicts in treatment: empirical support for a distinction between Type A and Type B

This study examines the possibility of replicating and generalizing a multidimensional typology of drug-addicts by means of the evaluation of 320 participants who were receiving outpatient treatment for their problem of addiction. A two-stage cluster analysis was performed, revealing the existence of two typologies of consumers, called type A and Type B. The participants classified as Type B showed various indicators of chronicity (higher mean age, higher unemployment rate), more severity of their problem of drug consumption and of medical aspects, employment support, legal, family/social and psychiatric problems in comparison with Type A. Participants from the latter group reported active employment as their main source of income and they had consumed drugs for fewer years. However, they presented more severity associated with alcohol consumption. In view of these data, Type A is called functional drug-addict and Type B chronic drug-addict. Once the groups of drug-addicts were delimited, a more specific characterization was made, taking seven problem areas into account: medical, employment support, alcohol, drugs, legal, family/social, and psychiatric areas. As a general conclusion, more psychosocial severity was observed in Type B as compared with Type A. Lastly, the implications and usefulness of grouping drug-addicts into typologies is discussed.