| 
 | ERSP | ERSN | ARS | DARS | MRS | 
| ERSP | 1 | 
 | 
 | 
 | 
 | 
| ERSN | .80** | 1 | 
 | 
 | 
 | 
| ARS | .25** | .36** | 1 | 
 | 
 | 
| DARS | .31** | .42** | .71** | 1 | 
 | 
| MRS | .21** | .30** | .29** | .41** | 1 |