Most managers would probably agree that positivity is something they value in employees, yet selection research has virtually ignored the relation between employee positivity and job performance. This article suggests that a broad personality trait, labeled positive self-concept or core self-evaluations, is a potentially important personality trait in the prediction of job performance. Positive self-concept consists of four specific traits previously studied in isolation: self-esteem, generalized self-ef- ficacy, locus of control, and (low) neuroticism or emotional stability. Data analyzed from 12 samples revealed that these specific traits are strongly correlated and comprise a common factor. Drawing from four motivation theories, we argue that the principal reason positive self-concept is linked to job performance is because positive employees are more motivated to perform theirjobs. We also argue that, in some jobs, positive self-concept may be an ability factor. Finally, we discuss various implemen- tation issues involved in using positive self-concept in selection decisions. Overall, this article suggests that positive self-concept is a trait deserving of more attention in selection research and practice.
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