Idiothetic inquiry and the toil of Sisyphus

In response to the article by Lamiell and Trierweiler (this issue), we examine the stated epistemological origins of idiothetic proposals for theory and research in personality We argue that the justification for those proposals as advanced by Lamiell and his colleagues is wholely insufficient in view of prior research on the consistency of behavior This assertion together with our identification of problems in scaling personality and personality consistencies lead us to conclude that the pursuit of the idiothetic method is both unwarranted and ineffectual     

Socially desirable responding and its elusive effects on the validity of personality assessments

Past studies of socially desirable self-reports on the items of personality measures have found inconsistent effects of the response bias on the measures' predictive validities, with some studies reporting small effects and other studies reporting large effects. Using Monte Carlo methods, we evaluated various models of socially desirable responding by systematically adding predetermined amounts of the bias to the simulated personality trait scores of hypothetical test respondents before computing test-criterion validity correlations. Our study generally supported previous findings that have reported relatively minor decrements in criterion prediction, even with personality scores that were massively infused with desirability bias. Furthermore, the response bias failed to reveal itself as a statistical moderator of test validity or as a suppressor of validity. Large differences between some respondents' obtained test scores and their true trait scores, however, meant that the personality measure's construct validity would be severely compromised and, more specifically, that estimates of those individuals' criterion performance would be grossly in error. Our discussion focuses on reasons for the discrepant results reported in the literature pertaining to the effect of socially desirable responding on criterion validity. More important, we explain why the lack of effects of desirability bias on the usual indicators of validity, moderation, and suppression should not be surprising.     

Self-Efficacy and the Prediction of Domain-Specific Cognitive Abilities

ABSTRACT We evaluated predictors of performance in 4 specific cognitive ability domains: verbal, numerical, spatial, and mechanical. The predictors were individual differences in self-efficacy beliefs, self-enhancement tendencies, and cross-domain abilities. Our university students' beliefs about their verbal, numerical, and spatial capabilities correlated well with their actual performance on standardized tests (verbal r =.33, numerical r =.27, spatial r =.36). In contrast, the students' self-efficacy for mechanical tasks did relatively poorly in predicting mechanical test performance ( r =.10). Most interesting were two other findings: (a) The best predictor of domain performance was level of cross-domain performance by far, even for mechanical tasks, and (b) self-enhancement tendencies added to cross-domain abilities and self-efficacy beliefs in the prediction of performance. The results are discussed in terms of possible mechanisms explaining how one's score on a maximal performance task can be affected by self-efficacy beliefs and self-enhancement tendencies.     

Sex Differences in Judgments of Social Desirability

This study evaluates sex differences in the perceived desirability of personality behaviors and beliefs. Men and women (N = 149, M_age = 18.7) judged the social desirability scale values (SDSVs) of 150 personality statements as applied either to a male target or a female target. For comparison, some estimated SDSVs with no target sex specified. A separate sample of 537 respondents endorsed the 150 items via self‐report. Raters showed a high consensus in their SDSV judgments within conditions (α = .86 to .90) and no sex‐of‐rater effects across conditions. Substantial sex‐of‐target effects (p < .001), however, revealed many behaviors that were viewed as desirable for one sex but not for the other. The behaviors seen as more (less) desirable when applied to men rather than to women were endorsed more (less) by men than by women in the respondent sample. Similar results were found when no target sex was specified for the SDSV ratings, presumably because judges evaluated the behaviors as applied to a target of their own sex. The present results have important implications for the measurement and reporting of SDSVs, the evaluation of substance versus style in self‐reports, and the construction of desirability‐reduced personality inventories.     

Nomothetic and idiothetic measurement in personality

Lamiell (1981, 1982a) has recently advanced an idiographic approach to the measurement of personality that he has labeled “idiothetic” In contrast to classical nomothetic strategies, the idiothetic method of scaling personality traits discounts normative transformations of attribute scores and, according to Lamiell, provides the basis for a useful index of cross–situational behavior consistency An analysis of Lamiell's procedures indicates several problems with the idiothetic approach to personality assessment and with the proposed measure of behavior consistency Notable is the fact that the method does not account for base rates of behavior in situations and, therefore, may suggest anomalous interpretations of personality characteristics and of behavior consistencies It is argued that conventional nomothetic methods are sufficient for the goals of explaining and predicting behavior     

Criterion validation of two approaches to performance appraisal: The behavioral observation scale and the relative percentile method

We compared the criterion validity of a new relative performance appraisal format (percentile-based ranking) to that of an absolute format (BOS) in a sample of 88 unit managers. Overall, our results suggest that the relative format has higher criterion-related validity than does the absolute format. These findings contradict conventional wisdom that format-related differences in measures of performance are minimal and that relative approaches to performance appraisal are inferior.This research was supported by grants from the Social Sciences and Humanities Research Council of Canada (SSHRC) to Richard D. Goffin, Douglas N. Jackson, John P. Meyer, Sampo V. Paunonen, and Mitchell G. Rothstein. Additional funding provided by a research grant from Imperial Oil Ltd. to Douglas N. Jackson.A version of these results was presented at the 7th Annual Meeting of the Society for Industrial and Organizational Psychology, Montreal, Canada, May, 1992. Limited portions of these data, addressing distinctly different research issues, were published in Gellatly, Paunonen, Meyer, Jackson, & Goffin (1991) and Meyer, Paunonen, Gellatly, Goffin, & Jackson (1989).     

Trait Relevance and the Differential Predictability of Behavior

ABSTRACT A prominent theory in contemporary personality involves the hypothesis that the accuracy of predicting a person's trait behavior is in part a function of the relevance of that trait to that person Empirical tests of this hypothesis have operationalized trait relevance with measures of behavior consistency, trait importance, behavior observability, and behavior frequency These variables were evaluated in this study for their relations with conventional measures of trait constructs Multivariate analyses using a number of behavior domains supported the conclusion that the underlying relations between trait relevance and trait level variables are quadratic (U or inverted-U) in form, a finding that has notable implications for the use of those variables as moderators of behavior predictability Contrary findings in the literature are acknowledged and are interpreted with reference to statistical artifacts     

Conformism moderates the relations between values, anticipated regret, and behavior

The purpose of the present study was to evaluate the moderating effect of Conformism values on the relations between other values and behavior. The authors expected people low, but not high, in Conformism to behave in a manner that is consistent with their personal values related to self-transcendence versus self-enhancement. In Study 1 (N = 199), such values predicted actual altruistic behavior, as estimated by other-reports, but only if Conformism values were low. In Study 2 (N = 189), only people who considered Conformism values to be relatively unimportant showed expected connections between self-transcendence values and anticipated regret in hypothetical scenarios having negative consequences. The data are interpreted as supporting the view that (a) anticipated regret motivates value-consistent behavior, (b) self-transcendence values in particular are connected to altruistic behavior and to anticipated regret, but (c) conformity to social norms moderates these connections.     

Overt honesty measures predicting admissions: an index of validity or reliability

Honesty questionnaires are often validated against a paper-and-pencil criterion in which respondents are asked to admit to past incidents of dishonesty. However, substantial overlap in the methods of assessment and in item content between predictor and criterion suggest that it is not validity that is being assessed, but rather a form of reliability. In this study, the relations between two overt measures of honesty (the Phase II Profile and the Workplace Productivity Questionnaire) and an admissions criterion were evaluated. The results suggest that the strong correlations between the Phase II Profile and the admissions criterion (r = -.67) and between scores on the Workplace Productivity Questionnaire and the admissions criterion (r = -.62) may be largely due to overlapping item content.