Table 7.
Assessment of alternate scales
| Scales | % reduction in LCV from best |
|---|---|
| CDI (one scale)a | |
| EFA, estimated loadings | 0.00 |
| Recommended, usual unit loadings | 0.80 |
| FACES (two scales)b | |
| EFA, independent scales, estimated loadings | 0.21 |
| EFA, dependent scales, estimated loadings | 0.21 |
| Varimax rotated, independent scales, unit loadings | 1.75 |
| Varimax rotated, dependent scales, unit loadings | 1.18 |
| Varimax rotated, dependent scales, estimated loadings | 0.00 |
| Unrotated, independent scales, unit loadings | 2.90 |
| Unrotated, dependent scales, unit loadings | 2.43 |
| Unrotated, dependent scales, estimated loadings | 0.64 |
| Recommended, independent scales, usual unit loadings | 5.61 |
| Recommended, dependent scales | |
| Usual unit loadings | 3.52 |
| Item 12 also reverse coded | 2.75 |
| Estimated loadings | 1.20 |
| DQOLY (three scales)c | |
| EFA, independent scales, estimated loadings | 0.93 |
| EFA, dependent scales, estimated loadings | 0.93 |
| Varimax rotated, independent scales, unit loadings | 0.94 |
| Varimax rotated, dependent scales, unit loadings | |
| One estimated correlation | |
| Factors 1–2 dependent | 0.56 |
| Factors 1–3 dependent | 0.75 |
| Factors 2–3 dependent | 0.94 |
| Two estimated correlations | |
| Factors 1–2 independent | 0.77 |
| Factors 1–3 independent | 0.58 |
| Factors 2–3 independent | 0.68 |
| Three estimated correlations | 0.40 |
| Varimax rotated, dependent scales, estimated loadings | 0.00 |
| Equamax rotated, independent scales, unit loadings | 1.15 |
| Equamax rotated, dependent scales, unit loadings | 0.45 |
| Equamax rotated, dependent scales, estimated loadings | 0.13 |
| Quarimax rotated, independent scales, unit loadings | 1.05 |
| Quarimax rotated, dependent scales, unit loadings | 0.54 |
| Quartimax rotated, dependent scales, estimated loadings | 0.10 |
| Promax rotated from equamax, independent scales, unit loadings | 1.06 |
| Promax rotated from equamax, dependent scales | 0.49 |
| Unit loadings | |
| Estimated loadings | 0.04 |
| Unrotated, independent scales, unit loadings | 5.63 |
| Unrotated, dependent scales, unit loadings | 4.68 |
| Unrotated, dependent scales, estimated loadings | 3.89 |
| Recommended, independent scales, usual unit loadings | 1.94 |
| Recommended, dependent scales, usual unit loadings | 1.03 |
| Recommended, dependent scales, estimated loadings | 0.83 |
a
The best LCV score using 10 folds is 0.52092 for EFA.
b
The best LCV score using 10 folds is 0.24297 for varimax rotation with loadings and interfactor correlation estimated.
c
The best LCV score using 15 folds is 0.25556 for varimax rotation with loadings and all inter-factor correlations estimated.