Table 4 Comparison of individual factor-scores derived from the ordinal confirmatory factor analysis approach with the factor scores derived from the item response theory (IRT) approach
From: Confirmatory factor analysis of the thyroid-related quality of life questionnaire ThyPRO
Ordinal vs. IRT factor scores intra-class correlation coefficients | |
|---|---|
Goiter Symptoms | 0.99 |
Hyperthyroid Symptoms | 0.98 |
Hypothyroid Symptoms | 0.94 |
Eye Symptoms | 0.96 |
Tiredness | 0.98 |
Cognitive Complaints | 0.98 |
Anxiety | 0.97 |
Depressivity | 0.98 |
Emotional Susceptibility | 0.98 |
Impaired Social Life | 0.95 |
Impaired Daily Life | 0.94 |
Impaired Sex Life | 0.95 |
Cosmetic Complaints | 0.98 |