Table 3.
Pearson Correlations between Number of Tasks in Performance Measures and Functional Job Analysis Scale Ratings (n = 18 Performance Measures)
| Complexity scale | Pearson correlation (with n of tasks in measure) | p value |
|---|---|---|
| Complexity scale | ||
| People | −0.210 | 0.404 |
| Things | −0.041 | 0.871 |
| Data | −0.257 | 0.304 |
| Worker instructions | −0.141 | 0.578 |
| Reasoning | −0.244 | 0.330 |
| Math | −0.168 | 0.505 |
| Language | −0.418 | 0.084 |
| Worker technology | −0.487 | 0.040 |
| Worker interaction | −0.254 | 0.309 |
| Human error consequence | −0.114 | 0.653 |
| Composite difficulty score* | −0.297 | 0.232 |
Spearman’s rank order correlation coefficients were comparable (the only significant association was with worker technology, rho = −0.481, p = 0.043)
*Z-scored composite of the ten individual complexity scales