Table 5.
Impact of Significantly Different Item Functioning on Subscale Measures
| DIF Subscale* | Correlation: DIF Adjusted and Non-Adjusted Measures | RMSE | Intercept | Slope |
|---|---|---|---|---|
| Psycho-emotional | ||||
| INCOME | 0.999 | 0.100 | −0.0891 | 0.999 |
| EDUCATION | 0.999 | 0.159 | −0.1242 | 0.999 |
| Health System Concerns | ||||
| INCOME | 0.999 | 0.072 | 0.0067 | 0.992 |
| EDUCATION | 0.999 | 0.089 | −0.0098 | 0.996 |
| Cancer-related Information | ||||
| INCOME | 0.999 | 0.038 | 0.0010 | 0.993 |
| EDUCATION | 0.999 | 0.022 | −0.0012 | 0.997 |
| General Health | ||||
| INCOME | 0.999 | 0.023 | −0.0011 | 0.999 |
| EDUCATION | 0.998 | 0.129 | −0.0226 | 1.000 |
| Surveillance | ||||
| INCOME | 0.999 | 0.063 | 0.0003 | 0.989 |
| EDUCATION | 0.999 | 0.164 | −0.0198 | 0.995 |
| Coping | ||||
| INCOME | 0.999 | 0.091 | −0.0079 | 0.994 |
| EDUCATION | 0.999 | 0.100 | −0.0114 | 0.998 |
| Fiscal Concerns | ||||
| INCOME | 0.997 | 0.218 | 0.0118 | 0.974 |
| EDUCATION | 0.999 | 0.048 | −0.0064 | 1.002 |
*
Subscales showing significantly different item functioning in DIF analysis.