|
Summary of psychometric tests carried out on two samples |
|||
| Psychometric property |
Statistical test |
Student sample (number) |
Population sample (number) |
|
|
|||
| Content validity |
Responder bias: Chi-square tests |
- |
2075 |
| Missing and popular responses |
348 |
2075 |
|
| Floor/ceiling effects (individual items) |
348 |
1749 |
|
| Construct validity |
Confirmatory Factor Analysis |
348 |
1749 |
| Internal consistency |
Cronbach's α 's |
348 |
1749 |
| Item-total score correlations |
348 |
1749 |
|
| Criterion validity |
Floor and ceiling effects (total score) |
348 |
1749 |
| Demographic differences in scores: |
- |
1749 |
|
| Wilcoxon rank sum tests/Kruskal-Wallis tests/Jonckheere's test |
|||
| Correlations with other scales: |
|||
| Spearman's rank correlation coefficient |
72 (EQ-5D VAS) |
1233 (GHQ-12) |
|
| 63 (PANAS- PA/NA) |
|||
| 63 (SPWB) |
|||
| 71 (SDHS) |
|||
| 79 (WHO-5) |
|||
| 79 (SWLS) |
|||
| 77 (GLS) |
|||
| 67 (EIS) |
|||
| Jonckheere's test |
- |
1233(GHQ-12) |
|
| Reliability |
Intra-class correlation coefficients |
124 |
- |
| Social desirability bias |
Spearman's rank correlation coefficient |
116 |
- |
Tennant et al. Health and Quality of Life Outcomes 2007 5:63 doi:10.1186/1477-7525-5-63 |
|||