The processing of spatially transformed text

The present study shows that previous attempts to demonstrate explicit memory for orientation of spatially transformed text were inconclusive. In the present experiments, subjects read spatially transformed sentences and were then given a recognition test that permitted the use of only nonsemantic information. The results revealed clear evidence of incidental retention of nonsemantic information on an immediate test, no improvement in performance under intentional learning conditions, reduced but still better than chance retention following a 48-h delay, and little change in performance with anomalous sentences. These and other results involving the reading of spatially transformed materials are discussed in terms of the interaction of processing requirements at encoding and retrieval.     

Generalization of aggressive behavior in adolescent delinquent boys

The generalization of conditioned aggressive and nonaggressive responses in a group of six adolescent delinquent boys was investigated. Responses were reinforced in card games where a token reinforcement system with money as a back-up rinforcer was used. Conditioning of responses was rapid. Generalization, measured in terms of frequency of physical contact, was tested in a group game for which no reinforcement was given. Generalization occurred during aggressive contingencies. During nonaggressive contingencies, responses did not return completely to the baseline level.     

Building capacity in planning,monitoring and evaluation: Lessons from the field

This paper reports on the author’s experiences as manager of a capacity-building project in Latin America. The project aimed to strengthen planning, monitoring, and evaluation (PM&E) in agricultural research. Nine lessons are drawn: (1) Project design is much more than a technical process; it is essentially one of negotiation. (2) In capacity-building projects, design activities cannot end when implementation begins. (3) Capacity-building efforts should prepare managers to deal with complexity, uncertainty and change. (4) In capacity-building efforts, it is essential to collaborate rather than patronize. (5) Organizational assessment is a complex social process, intertwined with organizational politics. (6) In designing capacity-building projects, it is essential to involve managers and staff members in assessing needs and opportunities. (7) Action-learning strategies offer great potential for capacity building. (8) In the context of strategic management and organizational learning, PM&E take on new meanings. (9) Training is most effective when it is designed to serve a purpose within an organizational change process. It is concluded that capacity building is more a process of social experimentation than of social engineering. Management systems cannot be imported, but need to be developed within organizations. Development agencies should play catalytic, facilitating roles, rather than take responsibility for organizational change. To support genuine capacity development, donors and funding agencies need to ensure that their planning and accountability procedures foster flexibility, innovation, and learning. Since joining ISNAR in 1990, he has engaged in research, training, and advisory work on research management, with an emphasis on evaluation. Previously, for fifteen years Horton was head of the social science department of the International Potato Center in Peru. Horton received B.S. and M.S. degrees in agricultural economics from the University of Illinois and a Ph.D. in economics from Cornell University. His current interests include action research and learning, organizational assessment, and institutionalization of planning, monitoring, and evaluation.     

Introduction: Special issue on behavioral neuropsychology

Dr. Horton's contribution was in his private capacity and was neither endorsed nor supported by the National Institute of Drug Abuse.     

运用均数与协方差结构模型侦查项目功能差异

阐释了运用多组均数与协方差结构(MACS)模型侦查多级反应项目的一致性与非一致性项目功能差异(DIF)的原理与程序, 以道德自我概念量表DIF的侦查进行示例, 并对该方法进行了评价。与项目反应理论比照, MACS采用系统的、迭代的方式利用修正指数来侦查DIF, 并提供多个拟合指数协同评价模型拟合;与标准验证性因素分析相较, MACS不仅能侦查非一致性DIF, 而且能侦查一致性DIF。运用MACS侦查DIF是一种值得推荐的方法。     

Hebb repetition effects in visual memory: the roles of verbal rehearsal and distinctiveness

A version of the Hebb repetition task was used with faces to explore the generality of the effect in a nonverbal domain. In the baseline condition, a series of upright faces was presented, and participants were asked to reconstruct the original order. Performance in this condition was compared to another in which the same stimuli were accompanied by concurrent verbal rehearsal to examine whether Hebb learning is dependent on verbal processing. Baseline performance was also compared to a condition in which the same faces were presented inverted. This comparison was used to determine the importance in Hebb learning of being able to visually distinguish between the list items. The results produced classic serial position curves that were equivalent over conditions with Hebb repetition effects being in evidence only for upright faces and verbal suppression as having no effect. These findings are interpreted as posing a challenge to current models derived from verbal-domain data.     

Task experience and children's working memory performance: a perspective from recall timing

Working memory is an important theoretical construct among children, and measures of its capacity predict a range of cognitive skills and abilities. Data from 9- and 11-year-old children illustrate how a chronometric analysis of recall can complement and elaborate recall accuracy in advancing our understanding of working memory. A reading span task was completed by 130 children, 75 of whom were tested on 2 occasions, with sequence length either increasing or decreasing during test administration. Substantial pauses occur during participants' recall sequences, and they represent consistent performance traits over time, while also varying with recall circumstances and task history. Recall pauses help to predict reading and number skills, alongside as well as separate from levels of recall accuracy. The task demands of working memory change as a function of task experience, with a combination of accuracy and response timing in novel task situations being the strongest predictor of cognitive attainment.     

Can defendants with mental retardation successfully fake their performance on a test of competence to stand trial?

The purpose of this study was to determine whether criminal defendants with mental retardation can feign poor performance on a test of competence to stand trial. Four groups of adjudicated criminal defendants were given a test of competence to stand trial. In the experimental condition, defendants with mental retardation (MR) and mentally typical defendants (non-MR) were given instructions to fake their performance on the test. In the control, MR defendants and non-MR defendants took the test under standard conditions. The results indicated that both the MR and non-MR fakers scored significantly lower than the MR and non-MR controls. There was no significant difference in the scores of the MR and non-MR fakers. The results suggest that defendants with mental retardation may be able to successfully fake their performance in certain circumstances. Implications of these findings are discussed.