Historical undecidability: The Kantian background to Derrida’s politics1

This paper deals with Derrida’s analysis of Kant’s Critique of Judgment in his essay ‘Economimesis’. I argue that Derrida’s analysis of Kant’s aesthetics can be used to describe the aporia within Kantian politics between rebellion and progressive revolutionary acts. The focus of my argument falls on examining how the recent debate over Derrida’s ethics can be usefully considered from the background of this treatment of Kant. In particular, the analysis Derrida gives of Kant’s aesthetics commits him to a series of conceptual constraints that can be detected in his recent commentaries on ‘forgiveness’ and ‘hospitality’. I suggest that these recent commentaries on political topics also depart from his earlier practice of ethics in ‘Economimesis’ as a ‘witnessing’ of the particular. This departure can be clearly seen once the Kantian background to Derrida’s recent writing is set out.     

The mental representation and processes of spatial deductive reasoning with diagrams and sentences

This study has two main objectives. The first is to specify the nature of the mental representation and processes underlying spatial reasoning with diagrams and sentences. The second is to investigate whether mental representations reproduce geometrical relations relative to spatial reference frames. Forty participants solved 64 spatial reasoning problems that were displayed using diagrams or sentences. Problems varied with respect to their logical structure and geometrical content. We measured the premise's inspection times, the responses, and the response times. Problems were significantly (p < .01) easier to represent and solve when displayed as diagrams than as sentences, indicating that participants constructed mental models. Mental representations and spatial deductions also varied consistently with the geometrical content, suggesting that mental models reproduced this content relative to a viewer‐centred reference frame.     

Persistence of inaccurate beliefs about the self: perseverance effects in the classroom

The perseverance of erroneous self-assessments was examined among high school students. Subjects were first exposed to either highly effective or thoroughly useless filmed instruction, leading, respectively, to their consequent success or failure. No-discounting subjects received no assistance in recognizing the relative superiority or inferiority of their instruction. Discounting subjects, by contrast, were subsequently shown the opposite instructional film, highlighting the obvious differences in instructional quality. Subsequent measures revealed that all subjects recognized the effectiveness or ineffectiveness of their instruction, although this contrast was clearer for discounting subjects. Nevertheless, both discounting and no-discounting subjects continued to draw unwarranted inferences--in line with their initial outcomes--about their personal capacities, immediately afterward. Dissociated and disguised measures of academic preferences and perceptions completed weeks later produced even more dramatic results: The continuing impact of initial outcomes was generally greater for discounting than no-discounting subjects.     

Gender differences in the social problem-solving performance of adolescents

Compared to other cognitive measures, social problem solving has received little attention in research on gender differences. In the present study, the Means-Ends Problem-Solving Procedure and the Personal Attributes Questionnaire (PAQ) were administered to 207 adolescents to examine social problem-solving skills as a function of subject gender, PAQ type, and gender of protagonist. Hypotheses were that superior problem solving would occur (a) for androgynous and masculine PAQ types and (b) when subject gender and/or PAQ type corresponded with protagonist gender. Results failed to corroborate these patterns, but indicated a clear overall advantage for females over males. A follow-up multiple-regression analysis showed this effect to be stable after controlling for English level. In a supplementary analysis, PAQ breakdowns were compared for the present sample and for one tested in a different region seven years earlier. Overall, the research findings imply that fewer adolescents today are likely to identify with traditional feminine roles, and that sex-related personality traits have, in general, a relatively limited impact on social problem-solving skills.     

Establishing Careers Education within a Modular Degree System

For the first time at degree level in the United Kingdom, modular students at Oxford Polytechnic now have the opportunity of studying independently the complex and stressful task of career decision-making. The proposal to offer a self-contained 'graduate careers' module generated a lively debate, and a survey within the polytechnic revealed that academic staff were evenly divided in their support and opposition to the innovation. The four key issues identified were 'academic rigour', on or off the curriculum, 'mollycoddling' the students, and staff resources. The approval process also threw some light on the perceptions of careers counselling held by academic staff.     

Reaction time and diazepam plasma concentration in subjects with normal gastric pH

The present study investigated the relationship of reaction time with the plasma concentration of four different formulations of diazepam (liquid, original, new, and generic). On four separate days, over a 4-month period, subjects with normal gastric pH (N=7) were administered each of the diazepam formulations. Blood samples were obtained prior to each dose and at subsequent intervals. Likewise, reaction times were evaluated prior to dosing and then at ten different intervals post-dosing. As hypothesized, reaction time performance was associated with plasma diazepam concentration, regardless of formulation type. This suggests that reaction time is a sensitive measure of cerebral functioning for individuals who are treated with diazepam. In addition to providing a measure of drug effects on cognitive functioning, the results of this study have implications concerning possible hazards of operating machinery or driving motor vehicles for individuals being treated with diazepam.     

Examining workgroup diversity effects: does playing by the (group-retention) rules help or hinder?

Group diversity researchers are often faced with the problem of calculating diversity indices for groups that are incomplete due to participant nonresponse. Because participant nonresponse may attenuate the correlations that are observed between group diversity scores and outcome variables, some researchers use group-retention rules based on within-group response rates. With this approach, only those groups that have a within-group response rate at, or higher than, the rate prescribed by the group-retention rule are retained for subsequent analyses. We conducted two sets of experiments using computer simulations to determine the usefulness of group-retention rules. We found that group-retention rules are not a substitute for a high response rate and may decrease the accuracy of observed relations, and consequently, we advise against their use in diversity research.