| Summary: | 碩士 === 高雄醫學大學 === 醫學系神經學科碩士班 === 96 === Perceptual organization deficit is common after disease or trauma that contributes to the impaired functional performance in daily activities. As a result, an early screening and treatment is essential for an improved prognosis. The Hooper Visual Organization Test (HVOT) is a widely used measure designed to evaluate visual perceptual ability in the patients with neurological impairment. The appropriateness of the HVOT for use in other cultures has been examined, incluing Greek and German. However, its measurement properties have not yet been investigated for the Taiwanese people. Thus, the purposes of this study are threefold: (1) to determine the internal consistency of the HVOT; (2) to explore the relationships between demographic parameters (age, education, and gender) and HVOT performance; and (3) to validate the HVOT by modern psychometric analysis, sepcifically by examining fit of the scale’s data to the Rasch measurement model.
A purposive sampling strategy was employed in order to ensure that cognitive performances were represented from healthy individuals of differing age, gender and education in southern Taiwan. A total of 360 people between the ages of 20 and 70 were recruited from various sources. The HVOT was administered individually to each participant.
The results showed that the internal consistency for the HVOT was good (split-half reliability = 0.81, Cronbach’s α = 0.87). There were significant main effects for age (F11, 348 = 29.5257; p < 0.0001) and education (F4, 355= 88.3327; p < 0.0001). Fit statistics indictaed that 26 of 30 (86.7%) items showed good fit to the Rasch model. The HVOT items were rearranged to be in hierarchical order.
Our results provided a valuable reference for the development of the Chinese version of the HVOT. Future research should aim at investigating test-retest reliability and validity, as well as establishing local norms for the HVOT.
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