title: Factor structure of the Hooper Visual Organization Test: a cross-cultural replication and extension.
abstract: To investigate construct validity of the Hooper Visual Organization Test (VOT), a principal-axis analysis was performed on the neuropsychological test results of 200 German-speaking neurological patients who received a comprehensive battery, encompassing tests of visuospatial functions, memory, attention, executive functions, naming ability, and vocabulary. A four-factor solution was obtained with substantial loadings of the VOT only on the first factor, interpreted as a global dimension of non-verbal cognitive functions. This factor loaded significantly on numerous measures of visuospatial processing and attention (with particularly high loadings on WAIS-R Block Design, Trails A and B, and Raven's Standard Progressive Matrices). The remaining three factors were interpreted as memory, verbal abilities (vocabulary), and a separate factor of naming abilities.
authors.affiliation: Vivantes Netzwerk für Gesundheit, Klinikum im Friedrichshain, Klinik für Neurologie, Landsberger Allee 49, 10249 Berlin, Germany. thomas.merten@vivantes.de
authors.forename: Thomas
authors.initials: T
authors.lastname: Merten
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001288:Attention; D001925:Brain Damage, Chronic / Q000175:diagnosis* / Q000523:psychology; D003431:Cross-Cultural Comparison; D004193:Discrimination Learning; D005260:Female; D005858:Germany; D006801:Humans; D008297:Male; D008570:Memory, Short-Term; D008875:Middle Aged; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D009949:Orientation; D010364:Pattern Recognition, Visual; D011594:Psychometrics / Q000706:statistics & numerical data; D011597:Psychomotor Performance; D011930:Reaction Time; D015203:Reproducibility of Results; D014706:Verbal Learning