| Literature DB >> 26473956 |
Luis F Díaz-Vilela1, Naira Delgado Rodríguez1, Rosa Isla-Díaz1, Dolores Díaz-Cabrera1, Estefanía Hernández-Fernaud1, Christian Rosales-Sánchez1.
Abstract
Work performance is one of the most important dependent variables in Work and Organizational Psychology. The main objective of this paper was to explore the relationships between citizenship performance and task performance measures obtained from different appraisers and their consistency through a seldom-used methodology, intraclass correlation coefficients. Participants were 135 public employees, the total staff in a local government department. Jobs were clustered into job families through a work analysis based on standard questionnaires. A task description technique was used to develop a performance appraisal questionnaire for each job family, with three versions: self-, supervisor-, and peer-evaluation, in addition to a measure of citizenship performance. Only when the self-appraisal bias is controlled, significant correlations appeared between task performance rates. However, intraclass correlations analyses show that only self- (contextual and task) performance measures are consistent, while interrater agreement disappears. These results provide some interesting clues about the procedure of appraisal instrument development, the role of appraisers, and the importance of choosing adequate consistency analysis methods.Entities:
Mesh:
Year: 2015 PMID: 26473956 PMCID: PMC4608809 DOI: 10.1371/journal.pone.0139898
Source DB: PubMed Journal: PLoS One ISSN: 1932-6203 Impact factor: 3.240
Distribution statistics, correlations, and F tests across measures of the four dependent variables.
| Asymmetry | Kurtosis | Correlationsa / Normality / F tests | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Min | Max | Mean | S.D. | S.E. | S.E. | 1 | 2 | 3 | 4 | |||||
| 1 | OCB | 135 | 2.38 | 10.00 | 7.29 | 1.45 | -0.366 | 0.209 | -0.126 | 0.414 | 0.698 | 0.698 | 1.275 | 4.227 | 0.063 |
| 2 | Task self | 135 | 3.64 | 10.00 | 7.16 | 1.36 | -0.101 | 0.209 | -0.375 | 0.414 | 0.563 | 0.563 | 0.528 | 12.586 | 0.031 |
| 3 | Task supervisor | 66 | 4.82 | 10.00 | 7.86 | 1.64 | -0.292 | 0.295 | -1.201 | 0.582 | 0.116 | 0.116 | 0.193 | 0.819 | 3.321 |
| 4 | Task peer | 22 | 4.83 | 9.88 | 7.31 | 1.34 | 0.255 | 0.491 | -0.494 | 0.953 | 0.106 | 0.106 | 0.137 | 0.058 | 0.528 |
* p ≤ .05,
** p ≤ .01,
*** p ≤ .001. a D.f. for each correlation is the lowest N of variables involved. Correlations in the lower triangle Kolmogorov-Smirnov Z tests in the diagonal; F tests of equality of means in the upper triangle.
Intraclass correlation coefficients between performance measures.
| d.f. | OCB | Task self | Task supervisor | |
|---|---|---|---|---|
| Task self | 135 | .719 | ||
| Task supervisor | 66 | .168 | .193 | |
| Task peer | 22 | .221 | .275 | -.018 |
***p ≤ .001;
ad.f. = 17. Overall consistency for three raters in task performance measures: ICC (3) = .303; n.s.; N = 17. ICC’s were calculated with “irr” package within R, assuming a one-way model (row effects random), and an average unit of analysis.
Correlations and intraclass consistency coefficients between performance measures within each OCB Cluster.
| OCB | Task—self | Task—supervisor | Task—peer | |
|---|---|---|---|---|
| Cluster 1 –High OCB ( | ||||
| OCB | .191 | -.062 | -2.680 | |
| Task self (69) | .263 | .201 | .070 | |
| Task supervisor (35) | .025 | .113 | -1.890 | |
| Task peer (11) | .062 | .200 | -.661 | |
| Cluster 2 –Not-so-high OCB ( | ||||
| OCB | .572 | -.122 | .379 | |
| Task self (66) | .474 | .092 | .351 | |
| Task supervisor (31) | .451 | .448 | .671 | |
| Task peer (11) | .817 | .594 | .547 | |
*p ≤ .05,
**p ≤ .01,
***p ≤ .001. Degrees of freedom in parentheses.
a n = 9;
b n = 8. Pearson correlations in the lower triangle and intraclass correlations in the upper triangle of each matrix. High OCB cluster’s overall task performance consistency: ICC(3) = -.260; n.s.; N = 9. Not-so-high OCB cluster’s overall task performance consistency: ICC(3) = .614; p ≤ .05; N = 8. ICC’s were calculated with “irr” package within R, assuming a one-way model (row effects random), and an average unit of analysis.
ANOVA tests of between job-families equality of means and Levene’s tests of homogeneity of variances.
| d.f. | F | η2 | Obs. Power | Levene’s test (d.f.) | Levene’s test (F) | Adj. R2 | |
|---|---|---|---|---|---|---|---|
| OCB | 7, 134 | 1.484 | .076 | .606 | 7,127 | 1.651 | .034 |
| Task Self | 7, 134 | 1.856 | .093 | .723 | 7,127 | .660 | .051 |
| Task Supervisor | 5, 65 | 6.136 | .338 | .993 | 5,65 | 4.286 | .629 |
| Task peer | 6, 21 | .980 | .282 | .272 | 6,18 | .754 | .000 |
Independent variable: Job family.
** p ≤ .01;
*** p ≤ .001.
1 Power was computed for α = .05.