SEXTUS EMPIRICUS ON THE POSSIBILITY OF INQUIRY

Abstract: In this paper I discuss Sextus Empiricus’ response to the dogmatists’ objection that the skeptics cannot inquire into philosophical theories and at the same time suspend judgment about everything. I argue that his strategy consists in putting the burden of proof on the dogmatists: it is they, and not the skeptics, who must justify the claim to be able to inquire into the nature of things. Sextus’ arguments purport to show that if we consider the dogmatists’ inquiry, we should conclude either that it is impossible or that it does not supply the skeptics with satisfactory starting‐points for further inquiry.     

Easing the Inferential Leap in Competency Modelling: The Effects of Task‐related Information and Subject Matter Expertise*

Despite the rising popularity of the practice of competency modeling, research on competency modeling has lagged behind. This study begins to close this practice–science gap through 3 studies (1 lab study and 2 field studies), which employ generalizability analysis to shed light on (a) the quality of inferences made in competency modeling and (b) the effects of incorporating elements of traditional job analysis into competency modeling to raise the quality of competency inferences. Study 1 showed that competency modeling resulted in poor interrater reliability and poor between‐job discriminant validity amongst inexperienced raters. In contrast, Study 2 suggested that the quality of competency inferences was higher among a variety of job experts in a real organization. Finally, Study 3 showed that blending competency modeling efforts and task‐related information increased both interrater reliability among SMEs and their ability to discriminate among jobs. In general, this set of results highlights that the inferences made in competency modeling should not be taken for granted, and that practitioners can improve competency modeling efforts by incorporating some of the methodological rigor inherent in job analysis.     

RIASEC TYPES AND BIG FIVE TRAITS AS PREDICTORS OF EMPLOYMENT STATUS AND NATURE OF EMPLOYMENT

This prospective study investigated the validity of the Five-Factor Model (FFM) of personality and Holland's RIASEC vocational interest typology in predicting employment status and the nature of employment in a sample of graduating college seniors as they entered the job market. A sample of 934 senior college graduates enrolled in various academic subjects filled in Costa and McCrae's NEO-PI-R (1992) and Holland's Self-Directed Search (1979). One year after graduation, they were requested to describe their labor market positions and jobs, using the Position Classification Inventory (PCI; Gottfredson & Holland, 1991). Six hundred and twelve people responded to the second call, of whom 335 were employed and 66 unemployed. The incremental validity of the 2 models over and above each other was investigated in the sample of employed and unemployed subjects ( N = 401) using stepwise regression analysis. The results showed that Extraversion and Conscientiousness were the only valid predictors of employment status and that vocational interests did not show incremental validity over and above these factors. The RIASEC types, however, were clearly superior in explaining the nature of employment, underscoring the validity of Holland's hexagonal calculus assumptions. Employment reflecting Realistic, Social and Enterprising characteristics was to a limited extent predicted by four of the Big Five, except Neuroticism, over and above the RIASEC types. The findings are discussed in the framework of Schneider's Attraction-Selection-Attrition (ASA) theory (1987) concluding that Holland's RIASEC model is more employee-driven, being better at predicting the nature of employment, whereas the FFM is more employer-oriedted, with greater validity in evaluating the employability and employment status of applicants.     

INTERNATIONAL VALIDITY GENERALIZATION OF GMA AND COGNITIVE ABILITIES: A EUROPEAN COMMUNITY META-ANALYSIS

This article reports on a series of meta-analyses into the criterion validity of general menatl ability (GMA) and specific cognitive ability tests for predicting job performance ratings and training success in the European Community (EC). Meta-analyses were computed on a large EC database examining the operational validity of GMA and other specific cognitive abilities, including verbal, numerical, spatial-mechanical, perceptual and memory ( N ranged from 946 to 16,065) across 10 EC member countries. The results showed that tests of GMA and specific cognitive ability are very good predictors of job performance and training success across the EC. Evidence for the international validity generalization of GMA and specific cognitive abilities was presented. The results for the EC meta-analyses showed a larger operational validity than previous meta-analyses in the U.S. for predicting job performance. For training success, the European and American results are very similar. Implications for the international generalizability of GMA test validities, practical use of cognitive ability tests for personnel selection, and directions for future research are discussed.     

Personality similarity,perceptual accuracy,and relationship satisfaction in dating and married couples

The association between actual and perceptual personality similarity and perceptual accuracy on relationship satisfaction is examined in 191 couples. Self‐ and partner ratings of personality were assessed using the Revised NEO Personality Inventory ( P. T. Costa & R. R. McCrae, 1992 ) and relationship satisfaction using the Relationship Assessment Scale ( S. S. Hendrick, A. Dicke, & C. Hendrick, 1998 ). Actual and perceptual similarity and perceptual accuracy were quantified using the index of profile agreement (R. R. McCrae, 1993 ) and L. J. Cronbach and G. C. Gleser's (1953) D‐indices. These indices showed large variability in personality profiles within couples and considerable perceptual accuracy between raters. Actual similarity was positively associated with female relationship satisfaction, controlling for personality traits of both partners. Moreover, partial support was obtained for the positive associations between perceptual similarity and accuracy and relationship satisfaction.     

RETEST EFFECTS IN OPERATIONAL SELECTION SETTINGS: DEVELOPMENT AND TEST OF A FRAMEWORK

This study proposes a framework for examining the effects of retaking tests in operational selection settings. A central feature of this framework is the distinction between within-person and between-person retest effects. This framework is used to develop hypotheses about retest effects for exemplars of 3 types of tests (knowledge tests, cognitive ability tests, and situational judgment tests) and to test these hypotheses in a high stakes selection setting (admission to medical studies in Belgium). Analyses of within-person retest effects showed that mean scores of repeat test takers were one-third of a standard deviation higher for the knowledge test and situational judgment test and one-half of a standard deviation higher for the cognitive ability test. The validity coefficients for the knowledge test differed significantly depending on whether examinees' test scores on the first versus second administration were used, with the latter being more valid. Analyses of between-person retest effects on the prediction of academic performance showed that the same test score led to higher levels of performance for those passing on the first attempt than for those passing on the second attempt. The implications of these results are discussed in light of extant retesting practice.     

THE RELATION OF INSTRUMENTAL and SYMBOLIC ATTRIBUTES TO A COMPANY'S ATTRACTIVENESS AS AN EMPLOYER

This study adds a new marketing-based angle to the study of the attractiveness of organizations in the early stages of the recruitment process. Drawing on the instrumental-symbolic framework from the marketing literature, we expected that the meanings (in terms of inferred traits) that prospective applicants associate with employing organizations would play an important role in applicants' attractiveness to these organizations. Two groups of prospective applicants (275 final-year students and 124 bank employees) were drawn from the applicant population targeted by the bank industry. These applicants were asked to rate a randomly assigned bank in terms of job/organizational factors and to ascribe traits to this bank. In both samples, trait inferences about organizations accounted for incremental variance over job and organizational attributes in predicting an organization's perceived attractiveness as an employer. Moreover, it was easier to differentiate among organizations on the basis of trait inferences versus traditional job and organizational attributes. Practical implications for image audit and image management are discussed.