Nuclear waste, secrecy and the mass media

Invited media scholars and journalists examine the general issue of nuclear waste, risk and the sicentific promises that were made, but not kept, about safe disposal. The mass media uncovered and reported on nuclear waste problems at Rocky Flats in Colorado and Hanford in Washington. Two environmental journalists review efforts to expose problems at these sites, how secrecy hampered reporting, and the effects of media coverage on nearby residents. An environmental communications scholar evaluates media coverage, the role of the U.S. Department of Energy, and the impact of secrecy on public risk perceptions and attitudes toward government nuclear waste policies.     

A multiple-observations model for response latency and the latencies of correct and incorrect responses in recognition memory

A model for response latency in recognition memory is described which is a strength model incorporating the notion of multiple observations and with the additional assumptions that the variance of the strength distributions increase with set size and that the observer attempts to keep his error rate at a constant level over set size. It is shown that the model can, without recourse to particular parameter values, predict a near linear RT set-size function and, since it is a (TSD) model in its decision aspects, can account for errors and hence error latencies in the recognition task. After the model is described, two experiments are performed which test the prediction that correct mean latency is generally shorter than incorrect mean latency. The prediction is confirmed and this feature is discussed in general, the model being compared with that of Juola, Fischler, Wood, and Atkinson (1971) in this respect. Some possible modifications to the latter model are also considered.     

Relations between neighborhood factors, parenting behaviors, peer deviance, and delinquency among serious juvenile offenders

The present study examined relations among neighborhood structural and social characteristics, parenting practices, peer group affiliations, and delinquency among a group of serious adolescent offenders. The sample of 14-18-year-old boys (N=488) was composed primarily of economically disadvantaged, ethnic-minority youth living in urban communities. The results indicate that weak neighborhood social organization is indirectly related to delinquency through its associations with parenting behavior and peer deviance and that a focus on just 1 of these microsystems can lead to oversimplified models of risk for juvenile offending. The authors also find that community social ties may confer both pro- and antisocial influences to youth, and they advocate for a broad conceptualization of neighborhood social processes as these relate to developmental risk for youth living in disadvantaged communities.     

Young children can extend motion verbs to point-light displays

In the first study using point-light displays (lights corresponding to the joints of the human body) to examine children's understanding of verbs, 3-year-olds were tested to see if they could perceive familiar actions that corresponded to motion verbs (e.g., walking). Experiment 1 showed that children could extend familiar motion verbs (e.g., walking and dancing) to videotaped point-light actions shown in the intermodal preferential looking paradigm. Children watched the action that matched the requested verb significantly more than they watched the action that did not match the verb. In Experiment 2, the findings of Experiment 1 were validated by having children spontaneously produce verbs for these actions. The use of point-light displays may illuminate the factors that contribute to verb learning.     

What can performance tell us about learning? Explicating a troubled concept

The notion of “performance7rdquo; has a central place in the contemporary discourse of learning and competence. The notion is used to translate abstract ideas and ideals of lifelong learning, organizational learning, learning society, etc., into practical measures. Changes in performance provide the identifiable measures that learning has taken place, evidence of enhanced competency/capability. Different versions of the learning and competency/capability agenda may place different emphases upon the extent to which such performance changes may be predetermined or are essentially emergent, but the assumption remains that performance provides the basis for attribution that learning has (or has not) taken place. This article takes issue with the conventional notion of “performance” as unequivocally observable. Drawing upon traditional philosophical distinctions between behaviour and action, and interpretative, constructionist, situational, and relational traditions within the social sciences, the nature of performance is subjected to theoretical analysis. It is argued that performance cannot be taken as transparent evidence of learning. Rather the attribution of performance is itself the outcome of situated acts of interpretation, essentially contestable and negotiated, subject to reinterpretation and renegotiation. The key social processes by which such interpretation is accomplished will be shown to implicate issues of identity (and identity formation) and social practice (and its discursive production). The potential fruitfulness of the identity-practice model will be illustrated by applying it to the issue of graduate “employability”, in order to address problems with the conventional “skills” approach.     

Individual Differences in Attitudes Relevant to Juror Decision Making: Development and Validation of the Pretrial Juror Attitude Questionnaire (PJAQ)1

This study involves scale development using theoretically derived items from previous measures and a lay consensual approach for generating new items. Confirmatory factor analysis was used to validate the emergent constructs assessing individual differences in attitudes of prospective jurors. Using case summaries, the Pretrial Juror Attitude Questionnaire (PJAQ) demonstrates superior predictive validity over commonly employed measures of pretrial bias. The PJAQ confirms the importance of theoretically derived constructs assessed by other scales and introduces new constructs to the jury decision‐making literature. The attitudes assessed by the PJAQ are conviction proneness, system confidence, cynicism toward the defense, racial bias, social justice, and innate criminality. Implications for assessing such attitudes and for better understanding the decision‐making process of jurors are discussed.     

What is the signal in signal detection?

This study concerns the nature of the stimulus represented along the decision axis in the yes/no auditory detection task. Two contrasting interpretations, absolute and difference representation of the stimulus, are tested by raising the carrier tone embedded within the background “noise” to the level of the signal, on occasional “catch” trials. Results indicate that difference detection may be the preferred mode of operation when a carrier tone is present and the task is a difficult one. Implications for the TSD model are discussed in terms of the relative efficiency of the two detection mechanisms.     

The attitude to personality disorder questionnaire: psychometric properties and results

Attitudes of professional psychiatric staff to personality disordered patients are notoriously pessimistic. This paper reports the findings from: (a) an exploratory survey to assess the components of attitude to personality disorder; (b) an assessment of the test-retest reliability of the attitude to personality disorder questionnaire; and (c) a confirmatory factor analysis with a third sample. Factor analysis of the feelings aroused in nurses by patients demonstrated an underlying structure consisting of enjoyment, security, acceptance, sense of purpose, and enthusiasm. This structure was confirmed in a subsequent sample. Test-retest reliabilities of the instrument were good to excellent. The scale has a robust structure, good psychometric properties, and is useful for outcome studies, benchmarking between units, and regular audits of staff attitude. Full details of the scale are provided, with normative data.     

Perceived organizational support and perceived external prestige: predicting organizational attachment for university faculty, staff, and administrators

The present article introduces a social-exchange model of organizational attachment incorporating both direct exchange and indirect exchange. Participants were 325 university employees. The present results indicated that perceived organizational support (POS) and perceived external prestige (PEP) both contribute to organizational attachment. Further, the results showed that the extent to which POS and PEP are related to organizational attachment is moderated by occupational proxies of cosmopolitan-local role orientation. POS was more strongly related to the affective commitment and withdrawal cognitions of staff and administrators than to those of faculty. PEP was more strongly related to affective commitment and withdrawal cognitions of university faculty than to those of university staff and administrators. The authors discussed the need to incorporate relational variables such as PEP into other social-exchange frameworks.