| Literature DB >> 35621416 |
Paola Magnano1, Palmira Faraci1, Giuseppe Santisi2, Andrea Zammitti2, Rita Zarbo1, Matt C Howard3.
Abstract
This study, after presenting a review of the existent literature on courage and social courage in the workplace, has the purpose of providing new evidence about the psychometric properties of an Italian-language version of the Workplace Social Courage Scale (WSCS), verifying its measurement invariance across gender and the discrimination properties of its items through IRT analysis. The aim of the research is testing the Italian version of the WSCS; for this scope, four studies have been conducted on four different samples analyzing the factorial structure, the internal consistency, the measurement invariance across gender, and the convergent and concurrent validity. The results support the psychometric properties in terms of factor structure, reliability, validity, and utility, showing positive relationships with the criterion variables: satisfaction of work-related basic needs, prosocial rule breaking and work performance. The current study extends prior findings by providing further insights about the construct of courage and social courage in the workplace, especially in the Italian context. As, to date, little is known about the impact of social courage on work and organizational outcomes, the availability of a reliable, valid, and cross-culturally supported instrument can promote the role of this construct in positive organizational behavior research.Entities:
Keywords: IRT; courage; measurement invariance; psychometrics; social courage
Year: 2022 PMID: 35621416 PMCID: PMC9137784 DOI: 10.3390/bs12050119
Source DB: PubMed Journal: Behav Sci (Basel) ISSN: 2076-328X
WSCS item means, SD, standardized factor loadings, and corrected item-total correlations (Sample 2).
| Item Number | Mean | SD | Standardized Factor Loadings | Standardized Residuals | Corrected Item-Total Correlation |
|---|---|---|---|---|---|
| WSCS 2 | 5.38 | 1.55 | 0.534 | 0.845 | 0.484 |
| WSCS 3 | 5.56 | 1.52 | 0.378 | 0.926 | 0.367 |
| WSCS 5 | 5.58 | 1.44 | 0.613 | 0.790 | 0.492 |
| WSCS 6 | 5.79 | 1.40 | 0.691 | 0.790 | 0.551 |
| WSCS 7 | 5.14 | 1.48 | 0.390 | 0.921 | 0.397 |
| WSCS 8 | 5.67 | 1.26 | 0.683 | 0.731 | 0.541 |
| WSCS 9 | 5.02 | 1.56 | 0.385 | 0.923 | 0.405 |
| WSCS 11 | 5.31 | 1.40 | 0.571 | 0.821 | 0.475 |
Quality and effectiveness of factor score estimates.
| Factor Determinacy Index (FDI) | 0.976 |
| EAP marginal reliability | 0.953 |
| Sensitivity ratio (SR) | 4.501 |
| Expected percentage of true differences (EPTD) | 96.6% |
Figure 1Distribution of conditional Bayes expected a posteriori estimation (EAP)/Orion reliability for the factor scores of the unidimensional WSCS.
Standardized factor loadings (λ) for invariance models.
| Item | CI λ (Male) | CI λ (Female) | MI λ | ScI λ | StI λ |
|---|---|---|---|---|---|
| Item 2 | 0.979 | 0.939 | 0.942 | 0.939 | 0.940 |
| Item 3 | 0.629 | 0.706 | 0.683 | 0.667 | 0.648 |
| Item 5 | 0.799 | 0.856 | 0.839 | 0.839 | 0.846 |
| Item 6 | 0.737 | 0.896 | 0.841 | 0.844 | 0.844 |
| Item 7 | 0.378 | 0.752 | 0.619 | 0.602 | 0.594 |
| Item 8 | 0.813 | 0.786 | 0.789 | 0.809 | 0.823 |
| Item 9 | 0.411 | 0.885 | 0.757 | 0.726 | 0.658 |
| Item 11 | 0.740 | 0.899 | 0.840 | 0.852 | 0.843 |
Note. CI = configural invariance; MI = metric invariance; ScI = scalar invariance; StI = strict invariance.
Fit indexes for invariance factor models.
| Nested Models | SBχ2 (df), | CFI | GFI | NNFI | RMSEA | SRMR | Δχ2 (Δdf), | ΔCFI |
|---|---|---|---|---|---|---|---|---|
| Model 1. Configural | 51.70 (34), | 0.97 | 0.97 | 0.95 | 0.05 | 0.05 | − | − |
| Model 2. Metric | 64.05 (42), | 0.96 | 0.96 | 0.95 | 0.05 | 0.07 | 10.04 (7), | 0.01 |
| Model 3. Scalar | 76.42 (49), | 0.95 | 0.99 | 0.95 | 0.05 | 0.07 | 12.31 (7), | 0.01 |
| Model 4. Strict | 113.94 (60), | 0.91 | 0.99 | 0.92 | 0.07 | 0.08 | 18.52 (10), | 0.04 |
Note. SB χ2 = Satorra–Bentler scaled chi-squared test; CFI = comparative fit index; GFI = goodness-of-fit index; NNFI = Non-normed fit index; RMSEA = root mean square error of approximation; SRMR = Standardized root mean square residual.
WSCS items infit statistics.
| Item | Infit | Item | Infit |
|---|---|---|---|
| Item 2 | 1.04 | Item 7 | 1.37 |
| Item 3 | 1.28 | Item 8 | 1.82 |
| Item 5 | 1.74 | Item 9 | 1.26 |
| Item 6 | 1.50 | Item 11 | 1.26 |
IRT parameterization of the WSCS items: item discrimination and item difficulty measures with related standard errors.
| a | b 1 | b 2 | b 3 | b 4 | b 5 | b 6 | |
|---|---|---|---|---|---|---|---|
| Item 2 | 1.46 ± 0.15 | −3.44 ± 0.36 | −2.67 ± 0.25 | −1.98 ± 0.18 | −1.56 ± 0.15 | −0.65 ± 0.09 | 0.66 ± 0.11 |
| Item 3 | 1.34 ± 0.14 | −3.03 ± 0.31 | −2.51 ± 0.24 | −1.98 ± 0.19 | −1.55 ± 0.15) | −0.80 ± 0.11 | 0.49 ± 0.10 |
| Item 5 | 1.53 ± 0.15 | −3.03 ± 0.29 | −2.45 ± 0.22 | −1.94 ± 0.17 | −1.35 ± 0.13 | −0.54 ± 0.09 | 0.73 ± 0.11 |
| Item 6 | 2.08 ± 0.21 | −2.87 ± 0.26 | −2.27 ± 0.18 | −2.04 ± 0.16 | −1.63 ± 0.13 | −1.01 ± 0.09 | 0.20 ± 0.08 |
| Item 7 | 1.00 ± 0.12 | −3.23 ± 0.37 | −2.49 ± 0.28 | −1.72 ± 0.20 | −0.81 ± 0.13 | 0.17 ± 0.11 | 1.81 ± 0.22 |
| Item 8 | 2.46 ± 0.25 | −2.69 ± 0.22 | −2.38 ± 0.18 | −1.82 ± 0.13 | −1.41 ± 0.10 | −0.65 ± 0.07 | 0.42 ± 0.08 |
| Item 9 | 1. ± 0.12 | −3.51 ± 0.41 | −2.49 ± 0.28 | −1.76 ± 0.21 | −0.92 ± 0.14 | 0.21 ± 0.11 | 1.96 ± 0.24 |
| Item 11 | 1.45 ± 0.15 | −4.43 ± 0.59 | −3.51 ± 0.37 | −2.35 ± 0.22 | −1.60 ± 0.15 | −0.73 ± 0.10 | 0.65 ± 0.11 |
Note. In parentheses bias-corrected bootstrap 95% confidence intervals for IRT parameterization. Legend. a = item discrimination; b = category difficulty.
Correlations of the WSCS testing convergent and concurrent validity.
| WSCS | CM | WBNS—Relatedness | |
|---|---|---|---|
| WSCS | 0.763 | ||
| CM | 0.457 ** | 0.840 | |
| WBNS—Relatedness | 0.253 ** | 0.182 ** | 0.716 |
Note. Reliabilities are on diagonal; WSCS = Workplace Social Courage Scale, CM = Courage Measure, WBNS = Work related Basic Need Satisfaction; ** p < 0.01.
Hierarchical regression analyses.
|
|
|
| Δ | Δ | |
|---|---|---|---|---|---|
|
| |||||
| Step 1 | |||||
| Social courage | 0.13 | 2.50 ** | 0.02 | 0.02 | 6.23 * |
| Step 2 | |||||
| Social courage | 0.06 | 1.02 | 0.03 | 0.02 | 7.12 ** |
| Courage | 0.15 | 2.67 ** | |||
|
| |||||
| Step 1 | |||||
| Social courage | 0.32 | 6.46 *** | 0.10 | 0.10 | 41.74 *** |
| Step 2 | |||||
| Social courage | 0.19 | 3.60 *** | 0.16 | 0.06 | 26.08 *** |
| Courage | 0.27 | 5.11 *** | |||
|
| |||||
| Step 1 | |||||
| Social courage | 0.16 | 3.19 ** | 0.03 | 0.03 | 10.18 ** |
| Step 2 | |||||
| Social courage | 0.08 | 1.34 | 0.06 | 0.03 | 11.32 ** |
| Courage | 0.19 | 3.36 ** | |||
|
| |||||
| Step 1 | |||||
| Social courage | 0.35 | 7.36 *** | 0.13 | 0.13 | 54.16 *** |
| Step 2 | |||||
| Social courage | 0.22 | 4.20 *** | 0.20 | 0.07 | 33.01 *** |
| Courage | 0.30 | 5.75 *** |
Note. * p < 0.05; ** p < 0.01; *** p < 0.001.