A multimethod generative CAI system for remedial mathematics

A computer-assisted instruction system for remedial mathematics has been written to yield four teaching methods based on two orthogonal variables: (1) With ad hoc frame orientation (AFO), training modules have a fixed order for all students, strict performance criteria must be met before moving to new modules, and students can ask only for problem solutions. With information structure orientation (ISO), the first two AFO conditions are dropped and students can also request partial answers and hints. (2) A confluent (affective) mode contrasts with didactic instruction by adding use of given names, self-report of moods, relaxation procedures, some communication with another student, and so on.     

ROTATION OF MENTAL IMAGES IN BABOONS WHEN THE VISUAL INPUT IS DIRECTED TO THE LEFT CEREBRAL HEMISPHERE

Abstract— The mental rotation phenomenon was examined in baboons and humans using a video-formatted matching-to-sample task. Sample stimuli were presented either centrally or in the right or left visual half-field. Immediately afterward, subjects had to distinguish the previously presented sample Stimulus from its mirror image after both had been rotated to the same angular deviation. A mental rotation phenomenon was found in baboons and humans, but in baboons this effect wax limited to conditions in which visual input was directed to the right visual half-field. These data represent the first evidence of mental rotation in a nonhuman species.     

The role of physical appearance in managerial decisions

This study was designed to examine stereotypical beliefs about the physical appearance of employees and the effects of these beliefs on decision-making. Current stereotypes about obese and very thin people were assessed, and the effect of beliefs about obese and very thin people on subjects' evaluations of employee performance was measured. The findings indicated that subjects used information about employees' weight and body build differently, depending on whether they were responding to questions about discipline, the likelihood of recurrence of behavior, or their desire to work with certain employees. Overall, the results suggest that subjects exclude nondiagnostic aspects of employees (e.g., weight and body build) in some types of work decisions.     

On the Misrecognition of Identity: Muslims' Everyday Experiences in Scotland

Political theory is interested in the misrecognition of identity because it impacts individuals' autonomy in their self-definition and thus their ability to articulate and pursue identity-related interests. Here, we explore minority group members' experiences of being seen in terms that do not accord with their self-definition. Our data are qualitative, gathered through walking interviews with 24 Muslims in Scotland. Focusing on interactions in which they reported discrepancies between how they and others saw them, we differentiate four forms of misrecognition: (1) having the meaning of a valued identity (i.e., one's Muslim identity) defined by others in ways that one judges inaccurate and inappropriate; (2) having one's membership of a valued community (e.g., as a member of Scottish society) denied or rejected; (3) having one's identity (i.e., one's Muslim identity) overlooked such that one's distinctive identity-related needs are not taken into account; (4) being seen in terms of just one of one's many social identities (i.e., one's Muslim identity) such that other identities (judged more situationally relevant) are ignored. This empirically grounded typology contributes to wider debates about the forms of identity (mis)recognition and their political implications.     

Genetic influence on the expression of hand preferences in chimpanzees (Pan troglodytes): evidence in support of the right-shift theory and developmental instability

Genetic mechanisms have been proposed to explain the pervasive representation of right-handedness in humans, whereas random, nongenetic factors have been posited to explain the lack of population-level right-handedness in nonhuman primates. We report evidence that hand preferences in chimpanzees are heritable, even among related individuals raised in different environments. Furthermore, we report that the degree of heritability is modified by factors associated with developmental instability, notably, offspring parity. The data are interpreted to reconcile both genetic models for handedness and hypotheses suggesting that developmental instability influences variation in handedness.