The effects of positive core self and external evaluations on performance appraisals

Güven, Lale
The purpose of this study was to investigate the effects of core self-evaluations (CSEs) and core external-evaluations (CEEs) on performance evaluations. It was hypothesized that people with higher levels of CSEs and CEEs would be more lenient in their performance ratings, when rating neutral performance. The second hypothesis of the study was that people with higher and lower CSEs would engage more in halo when rating neutral performance compared to people with average levels of CSEs. It was further hypothesized that CEEs would moderate the relationship between CSEs and performance ratings given. A total of 129 students from the Middle East Technical University participated in this study. They were given the core self- and external-evaluations scales, as well as two distractor scales (PANAS and Rosenberg Self-Esteem Scale). They were later assigned randomly to either the neutral or the good performance vignette conditions, and asked to rate the performance of a departmental secretary whose performance was described in the vignette using two different performance rating forms that included the relevant performance dimensions and behaviors of the secretary. The first one of these forms is the Behavior Observation Scale (BOS) and the second one is the Graphic Rating Scale (GRS). The results showed that CSEs did not have a significant effect on the performance evaluations given. When the mood of the participants was controlled, however, people who had higher CSEs gave lower performance ratings to neutral performance than people who had lower CSEs, with the GRS as the rating form. Thus, the first hypothesis was not supported and even an opposite effect emerged. The second hypothesis found no support, as the standard deviations of the performance ratings given by people with high, low or average CSEs did not differ significantly from each other for the neutral performance vignette condition, even when the mood of the participants was controlled. However, the standard deviations of the ratings given by participants with average CSEs were higher than that of the participants with low and high CSEs for the good performance vignette condition. Hypothesis three was not supported either, as CEEs were not found to moderate the relationship between CSEs and the performance ratings.
Citation Formats
L. Güven, “The effects of positive core self and external evaluations on performance appraisals,” M.S. - Master of Science, Middle East Technical University, 2007.