Table 8a.

EFA of the combined eHRB and WAIS/WAIS-R: geomin-rotated factor loadings of the 8-factor solution

Test measures	F1	F2	F3	F4	F5	F6	F7	F8
	Working memory	Fluency	Phonological decoding	Semantic knowledge	Verbal episodic memory	Visuospatial cognition	Perceptual-motor speed	Perceptual attention
HRB
Aphasia Screening	0.196	0.007	0.336	0.322	0.080	−0.059	0.082	0.013
Speech-Sounds Perception	−0.005	0.072	0.333	0.024	0.095	0.212	0.076	0.416
Category	0.130	0.006	−0.068	0.047	0.185	0.533	0.087	0.061
TPT (memory)	0.004	0.160	−0.002	−0.108	0.168	0.567	−0.069	0.066
TPT (time – total)	−0.010	0.045	−0.038	−0.058	0.097	0.606	0.247	0.042
Trail Making Test—Part A	0.111	0.049	0.021	−0.007	−0.013	0.136	0.607	0.054
Trail Making Test—Part B	0.277	0.040	0.026	0.046	0.078	0.094	0.524	0.098
SPE (right side)	0.125	0.039	−0.142	−0.028	0.122	0.213	0.151	0.328
TFR (right hand)	−0.043	−0.006	−0.027	0.051	−0.060	0.150	0.378	0.294
Seashore Rhythm	0.293	0.072	0.051	−0.072	−0.010	0.051	0.012	0.414
eHRB expansion
PASAT	0.497	0.093	−0.017	0.030	0.142	−0.001	0.342	−0.011
Digit Vigilance (Error)	0.323	−0.224	0.250	0.012	0.232	0.080	−0.020	0.050
Thurstone Word Fluency	0.011	0.686	0.168	0.015	0.045	0.087	0.054	0.044
Letter Fluency (FAS)	0.057	0.802	0.041	0.040	−0.042	−0.035	−0.025	0.084
Category Fluency (Animal)	0.002	0.470	−0.107	0.190	0.103	0.054	0.139	−0.056
PIAT reading recognition	0.042	0.044	0.546	0.467	−0.175	−0.007	−0.004	−0.025
BNT	−0.125	0.062	0.161	0.632	0.025	0.206	−0.005	0.064
Story Memory (Learning)	0.078	0.043	<0.001	0.351	0.564	0.001	0.029	−0.020
CVLT (Trials 1–5)	−0.023	0.165	0.079	0.054	0.565	0.047	0.142	0.001
Figure Memory (Learning)	0.039	−0.031	0.062	−0.015	0.203	0.728	−0.009	0.001
Digit Vigilance (Time)	−0.034	0.074	−0.006	−0.047	−0.162	−0.033	0.779	−0.007
Grooved Pegboard (dom. hand)	−0.131	−0.051	0.017	0.061	0.078	0.283	0.464	0.177
WAIS/WAIS-R
Digit Span	0.566	0.048	0.127	0.050	−0.027	−0.015	−0.028	0.354
Arithmetic	0.496	−0.036	−0.003	0.396	0.014	0.093	0.035	−0.096
Information	0.085	0.052	0.020	0.744	0.007	0.102	−0.134	−0.176
Vocabulary	0.019	−0.003	0.134	0.856	−0.003	−0.088	−0.014	0.086
Comprehension	−0.071	−0.006	−0.061	0.753	0.028	−0.023	−0.019	0.177
Similarities	−0.009	0.030	0.016	0.595	0.052	0.210	0.032	−0.048
Picture Completion	0.034	−0.031	−0.088	0.377	−0.032	0.373	0.123	0.148
Picture Arrangement	0.053	0.014	−0.081	0.204	0.201	0.377	0.037	0.129
Block Design	0.150	−0.010	0.010	0.200	−0.064	0.731	0.012	−0.055
Object Assembly	−0.032	0.029	0.126	0.046	−0.059	0.873	0.004	−0.140
Digit-Symbol Coding	0.107	−0.018	0.257	−0.029	0.022	−0.013	0.736	−0.112

Note: EFA = Exploratory Factor Analysis; HRB = Halstead-Reitan Battery; eHRB = expanded Halstead-Reitan Battery; WAIS = Wechsler Adult Intelligence Scales; WAIS-R = Wechsler Adult Intelligence Scales-Revised. Light gray-shaded areas indicate loadings ≥0.24 (i.e., items with more than 5% overlapping variance with the factor); and dark gray-shaded areas indicate loadings ≥0.4 considered priorities for factor interpretation.