Table 3.
Reliability coefficients of the RPQ proxy version
| RPQ Scale | Cronbach’s α | α when item omitted |
McDonald’s ω | CITC Range |
Correlations | ||
|---|---|---|---|---|---|---|---|
| (1) | (2) | (3) | |||||
| (1) Cognitive | 0.87 | 0.80–0.84 | 0.88 | 0.79–0.83 | 1 | – | – |
| (2) Somatic | 0.81 | 0.76–0.80 | 0.84 | 0.46–0.73 | 0.60 | 1 | – |
| (3) Emotional | 0.83 | 0.72–0.83 | 0.86 | 0.60–0.89 | 0.67 | 0.68 | 1 |
| (4) Total | 0.90 | 0.89–0.90 | 0.92 | 0.36–0.78 | 0.77 | 0.89 | 0.85 |
CITC = Corrected Item-Total Correlation. Values in bold indicate at least satisfactory Cronbach’s α (i.e., α ≥ 0.70) and McDonald’s ω (i.e., ω ≥ 0.80) or at least moderate Spearman correlation coefficients (i.e., r ≥ 0.30)