Differential development of 24-h retention capacities for two components of T-maze escape learning by infant mice

At 9 or 11 days of age, separate groups of Swiss-Webster mice received 12, 24, or 40 training trials to the goal opposite their first-trial choice in a shock-escape T-maze task. All groups were retested to the same goal for 25 trials 24 h following training, while maturation controls without prior exposure were trained to the goal opposite their first choice. All groups demonstrated increased escape proficiency during original training on two separate escape components: reaching the choice point and making the correct turn at the choice point. During retention testing, all groups at both ages exhibited better escape performance in terms of reaching the choice point than their maturation controls. However, when escape was measured in terms of choice, none of the groups trained at 9 days of age differed significantly from maturation controls when retested at 10 days of age. In contrast, retention of correct choice point turn varied directly with number of original training trials for mice trained at 11 days of age.     

Controlled choice assignments: A new and more effective approach to school desegregation

The authors argue that conventional mandatory and voluntary school desegregation techniques have failed to provide minority students with maximum feasible relief from invidious discrimination because they do not redress the root causes of segregation. They demonstrate that residential-based student assignment plans as well as plans that give students limited access to a few educationally enriched magnet schools are not asymmetrical remedies to wrongful segregation and thus work to perpetuate the racial and social inequities that they purport to correct. The authors offer an alternative approach to school desegregation—controlled choice—that operates independently from residential housing patterns and which explicitly seeks to maximize personal choice within a racially unitary, equitable, and educationally enhanced system of public schooling. Controlled choice was originally pioneered in Cambridge, Mass. during the early 1980s and has recently been adopted in Little Rock, Ark., and Fall River, Mass. The policy is also being actively reviewed by several of the nation's largest school districts including Seattle, Memphis, and Boston.     

Student achievement and differential reinforcement of incompatible behavior: Hand raising

Workbook reading achievement of five second-grade girls was assessed under two teacher-contact contingencies. Under one contingency, teacher contacts were made during on-task behavior. Under the other contingency, differential reinforcement of an incompatible behavior (DRI) was in effect, with teacher contacts contingent on students' hand-raising behavior. Both reading achievement and time on task were greater under the on-task contingency than under DRI for hand raising.     

Reasoning about logical propositions and success in science

Students display a number of misconceptions when asked to reason about logical propositions. Rather than being random, these misconceptions are stereotypic, and relate to age, ability, and success in science. The grades in science achieved by tenth-grade general science students from two parochial single-sex schools in Australia correlated with their scores on the Propositional Logic Test. The students' ability level was consistently related to the pattern of errors they committed on that measure. Mean scores were lowest on a subtest of ability to use the biconditional and implication, higher on the disjunction, and highest on the conjunction. Success in science was predicted most strongly by the disjunction and biconditional subtests. Knowledge of the way in which a person reasons about logical propositions provides additional insights into the transformations information is subjected to as it is integrated into mental schemata.     

Knowledge acquisition by computerized audiovisual feedback

The present article gives an outline of the state of art in computer assisted intervention by learning-concomitant differential feedback. Based on the spectrum of possible meanings and interpretations given to the concepts ‘interaction’ and ‘interactive’ this concept is elaborated and illustrated by prototypical theoretical approaches. Based on our own empirical findings arguments are given showing that sophisticated audiovisual interactive new technologies can properly be used even on the small machines available in schools if the content materials and the flow of control given to the learner are carefully designed and based on principles of cognitive science.

     

Evaluation of Handheld Computers for Direct Systematic Classroom Observation

Through this study the authors evaluate outcomes associated with the use of handheld computers by interventionists in improving the efficiency of direct systematic classroom observation. Information from observations is used by interventionists for treatment planning and evaluation. In this study, interventionists were trained to use personal digital assistants with classroom observational software for use with students who displayed low levels of academic engagement. Results indicated that the personal digital assistants and observational software were perceived as user-friendly, increased computer self-efficacy, and facilitated treatment planning and evaluation. Discussion focuses on implications for use of handheld computers and mobile devices by interventionists.     

La zona de desarrollo próximo: donde cultura y conocimiento se generan mutuamente

RESUMEN

El artículo expone los distintos enfoques que nos llevan al estudio del conocimiento y del desarrollo cognitivo basado en la cultura, áreas de estudio que tradicionalmente se han disociado y estan íntimamente relacionadas. En particular se centra en: la teoría sociocultural de los procesos psicológicos de Vygotski; Leontiev y su concepto de “actividad”; y las aportaciones de la antropología cultural. El concepto “zona de desarrollo próximo”, acuñado por Vygotski, ha tenido muchas aplicaciones educativas y se han llevado a cabo muchas investigaciones psicoantropológicas. La adquisición de conductas culturalmente adecuadas es un proceso de interacción del niño con los adultos y es un proceso de interacción y aculturación. Desde esta perspectiva, el enfoque sociocultural ofrece el marco necesario para el estudio de diversas facetas de la naturaleza humana.     

The effect of gender,deceit orientation and communicator style on macro‐assessments of honesty

Recently, deception research has focused primarily on micro‐analytic methods of lie detection (e.g., eye contact duration, response latency, vocal errors). This study adopted a macro‐assessment approach, where deception detection is based on global evaluations of communication, specifically honesty evaluation based on communicator style. 385 subjects viewed four different videotape segments of individuals participating in a simulated job interview. Two of the individuals were truthful throughout the interview, and two fabricated false information on some questions. Subjects were asked to evaluate or assess the honesty level of these individuals, as well as assess a number of communicator style dimensions. Multiple regression analyses revealed that honesty assessments can be predicted from communication style characterized by high friendliness, attentiveness, and preciseness, and low animated and dramatic styles. Some differences were observed for communicator style predictions of honesty based on liars/truthers, subject gender, target gender, and deceit‐orientation differences. Implications for future research are noted.     

An Evaluation of a Pilot Service‐Learning Course for Criminal Justice Undergraduate Students*

This article focuses on a pilot service‐learning program implemented with undergraduate students enrolled in a juvenile delinquency course. An evaluation of the service‐learning program on students’ attitudes toward diversity, interpersonal skills, personal and intellectual development, and citizenship behavior using qualitative analysis is presented. The results indicate that the majority of students came to view the youth in a positive light, reported learning how to work with youth, experienced a reduction in stereotypes, gained career insights, learned how to apply academic theory to real‐life experiences and developed attitudes about how society addresses delinquency that were sympathetic to the youths’ condition.     

THE DEPARTMENT CHAIR AS SPEAKER OF THE HOUSE: SHARED AUTHORITY IN THE COMMUNITY COLLEGE DEPARTMENT

The department chair position is vital to the effective administration of both the academic unit and the entire college. Inherent in the roles and tasks of the individual position is a responsibility for consensus development, which in turn requires the involvement of faculty in decision-making activities. This consensual development dictates that faculty who are specialists in their particular academic disciplines be involved in decisions ranging from admissions and grading to institutional policy formation and cross-disciplinary curricula development. The current study was conducted to examine the perceptions of department chairs in the involvement of faculty in departmental decision-making.