Predicativity and Structuralism in Dedekind’s Construction of the Reals

It is a commonly held view that Dedekind’s construction of the real numbers is impredicative. This naturally raises the question of whether this impredicativity is justified by some kind of Platonism about sets. But when we look more closely at Dedekind’s philosophical views, his ontology does not look Platonist at all. So how is his construction justified? There are two aspects of the solution: one is to look more closely at his methodological views, and in particular, the places in which predicativity restrictions ought to be applied; another is to take seriously his remarks about the reals as things created by the cuts, instead of considering them to be the cuts themselves. This can lead us to make finer-grained distinctions about the extent to which impredicative definitions are problematic, since we find that Dedekind’s use of impredicative definitions in analysis can be justified by his (non-Platonist) philosophical views.

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It is Better to Receive than to Give: Advice Network Effects on Job and Work-Unit Attachment

Purpose  The purpose of this paper was to investigate the relationship between advice-giving, advice-receiving, and employee work attitudes. We argue that (1) both advice-receiving and advice-giving will be positively related to job involvement; (2) advice-receiving will be more strongly associated with work-unit commitment than advice-giving; and (3) job involvement will mediate the relationship between advice-receiving and work-unit commitment. Design/methodology/approach  We conducted an empirical study of admissions department employees at a large university in southwest Pennsylvania in the United States. Respondents completed surveys which included questions related to demographics, social network ties, and attitudes. Findings  We found that while advice-giving and advice-receiving were positively related to job involvement, only advice-receiving was positively related to work-unit commitment. Job involvement fully mediated the relationship between advice-receiving and work-unit commitment. Implications  Our study (1) shows that advice-giving and advice-receiving are related to important work-related attitudes in organizations; (2) highlights the importance of the directionality of advice flow, as employees who received as opposed to provided advice tended to have higher levels of work-unit commitment; and (3) demonstrates that social network ties were related to work-unit attachment through job involvement. Originality/value   We examine job involvement and work-unit commitment using a social network analysis thus providing new insights about the relationships between advice-giving, advice-receiving and these important variables. An earlier version of this paper won the Best Paper Award at the 2005 Southwest Academy of Management Conference. The authors would like to dedicate this paper to Margie Jonnet.     

An Oral History of the National Society of Genetic Counselors

Master's level genetic counselors formed a professional society in 1979, 8 years after the first master's degree training program graduation. This paper presents an oral history of the early years of the National Society of Genetic Counselors (NSGC), reviews the symbiotic development and definition of a profession and a professional society, and discusses events and achievements attributed to the NSGC since its incorporation. This retrospective historical account is based on personal and collective oral history, NSGC archival material and other sources.     

Negative content of thinking in panic disorder and major depression–a self-report study

The purpose of the present study was to investigate the character and extent of negative thought content in panic disorder (PD) and the relation between thinking and bodily sensations. Content of thinking was explored in several areas, some of which are not exclusively related to anxiety. A structured diagnostic interview (SCID), a self-rating scale (SCL-90R), a sentence construction test (The Incomplete Sentences Blank (ISB)), and an inventory of childhood memories of parental rearing (the EMBU) were administered to 47 PD patients, 15 patients with major depression (MD), and 30 normal subjects. Thus, measures of implicit as well as explicit thinking, measures of thinking on present as well as past issues, and methods allowing negative as well as positive thought content to be expressed, were used. We found that PD was characterized by more negative thinking of anxiogenic, depressive, and dependent nature and less neutral or positive thinking than the normal subjects, primarily in issues related to the present. These negative thoughts were correlated with bodily symptoms. Very few significant differences were found between PD and MD, but a subgroup of PD with comorbidity of MD exceeded the other groups on measures of negative thoughts as well as bodily symptoms.     

Racial differences in intelligence: The importance of the executive system

The race-IQ controversy arose at a time when psychometric views of intelligence dominated. Little attention was paid to more process-oriented models in spite of the fact they provide alternative perspectives on the causes of individual differences in problem-solving. We hypothesized that much of the IQ spread commonly observed between black and white children can be attributed to differences in components of their executive systems, including the knowledge base, control processes, and metacognitive states. To test this possibility, black and white children who differed significantly on fluid and crystallized intelligence were tested on multiple tasks reflecting components of the executive systems as well as on perceptual efficiency tasks. Striking group differences were observed in metamemory, stragegy use, and general knowledge, but few reliable differences were found in perceptual efficiency. Regression analyses showed that different factors predicted fluid and crystallized intelligence, with metamemory predicting the latter but not the former. An implication of these findings has potential educational significance: training directed at executive skills, introduce at an early age, might elevate learning and problem-solving skills in black children, thereby reducing racial differences in crystallized intelligence.     

Psychology and homelessness. A public policy and advocacy agenda.

This article describes a public policy agenda developed for the American Psychological Association (APA) by the APA Ad Hoc Advisory Panel on Homelessness, which met May 31-June 1, 1991. The agenda is intended to inform APA staff in their legislative and policy work with Congress and Executive Branch agencies on issues relevant to homelessness.