Table 2.
Exploratory factor analysis of the 10 WISC-V primary substests: Five-factor model solution (oblique) with promax rotation for the EFA sample (n=823).
| WISC-V subtest | Sg | F1 | F2 | F3 | F4 | F5 | h 2 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | S | P | S | P | S | P | S | P | S | |||
| SI | 0.730 | 0.642 | 0.778 | 0.011 | 0.566 | 0.068 | 0.586 | 0.107 | 0.619 | 0.026 | 0.390 | 0.622 |
| VC | 0.712 | 0.907 | 0.892 | −0.021 | 0.524 | −0.079 | 0.506 | −0.063 | 0.546 | −0.016 | 0.346 | 0.808 |
| BD | 0.679 | 0.061 | 0.530 | 0.409 | 0.671 | 0.166 | 0.609 | 0.093 | 0.582 | 0.071 | 0.409 | 0.492 |
| VP | 0.751 | −0.025 | 0.554 | 0.967 | 0.896 | −0.059 | 0.626 | −0.002 | 0.602 | −0.023 | 0.400 | 0.806 |
| MR | 0.697 | −0.048 | 0.509 | −0.025 | 0.596 | 0.921 | 0.844 | −0.029 | 0.612 | −0.013 | 0.337 | 0.717 |
| FW | 0.645 | 0.178 | 0.555 | 0.147 | 0.566 | 0.230 | 0.601 | 0.209 | 0.595 | −0.024 | 0.323 | 0.436 |
| DS | 0.649 | 0.058 | 0.522 | −0.028 | 0.512 | 0.140 | 0.588 | 0.560 | 0.694 | 0.016 | 0.359 | 0.492 |
| PS | 0.566 | −0.039 | 0.430 | 0.029 | 0.456 | −0.096 | 0.466 | 0.752 | 0.669 | −0.008 | 0.312 | 0.453 |
| CD | 0.488 | −0.044 | 0.315 | −0.063 | 0.336 | −0.068 | 0.313 | 0.181 | 0.413 | 0.738 | 0.748 | 0.570 |
| SS | 0.501 | 0.035 | 0.341 | 0.051 | 0.382 | 0.048 | 0.336 | −0.163 | 0.327 | 0.815 | 0.796 | 0.643 |
| Eigenvalue | 4.58 | 0.79 | 0.58 | 0.73 | 1.20 | |||||||
| % Variance | 45.82 | 7.89 | 5.78 | 7.28 | 11.95 | |||||||
| Factor correlations | ||||||||||||
| F1 | F2 | F3 | F4 | F5 | ||||||||
| F1 | 1 | – | – | – | – | |||||||
| F2 | 0.650 | 1 | – | – | – | |||||||
| F3 | 0.650 | 0.736 | 1 | – | – | |||||||
| F4 | 0.686 | 0.700 | 0.757 | 1 | – | |||||||
| F5 | 0.433 | 0.475 | 0.431 | 0.484 | 1 | |||||||
SI = Similarities; VC = Vocabulary; BD = Block Design; VP = Visual Puzzles; MR = Matrix Reasoning; FW = Figure Weights; DS = Digit Span; PS = Picture Span; CD = Coding; and SS = Symbol Search. F1, Verbal Comprehension; F2, Visual Spatial; F3, Fluid Reasoning; F4, Working Memory; and F5, Processing Speed. P, Pattern Coefficient (factor loading); S, Structure Coefficient (factor correlation); and h2, Communality (after extraction). General structure coefficients (Sg) are based on the factor coefficients for the first unrotated factor (g-factor loadings) and eigenvalues. Salient factor loadings (≥ 0.30) are indicated in bold numbers.