Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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A Study on Verification of Equivalence and Effectiveness of Non-Pharmacologic Dementia Prevention and Early Detection Contents : Non-Randomly Equivalent Design

  • Jeong, Hyun-Seok (Department of Psychology, College of Social Science, Kyungpook National University) ;
  • Kim, Oh-Lyong (Department of Neurosurgery, College of Medicine, Yeungnam University) ;
  • Koo, Bon-Hoon (Department of Psychiatry, College of Medicine, Yeungnam University) ;
  • Kim, Ki-Hyun (Corporate Research Institute of Clupea, Inc.) ;
  • Kim, Gi-Hwan (Corporate Research Institute of Clupea, Inc.) ;
  • Bai, Dai-Seg (Department of Psychiatry, College of Medicine, Yeungnam University) ;
  • Kim, Ji-Yean (Department of Psychiatry, College of Medicine, Yeungnam University) ;
  • Chang, Mun-Seon (Department of Psychology, College of Social Science, Kyungpook National University) ;
  • Kim, Hye-Geum (Department of Psychiatry, College of Medicine, Yeungnam University)
  • Received : 2021.06.18
  • Accepted : 2021.07.28
  • Published : 2022.03.01
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Abstract

Objective : The aim of this study was to verify the equivalence and effectiveness of the tablet-administered Korean Repeatable Battery for the Assessment of Neuropsychological Status (K-RBANS) for the prevention and early detection of dementia. Methods : Data from 88 psychiatry and neurology patient samples were examined to evaluate the equivalence between tablet and paper administrations of the K-RBANS using a non-randomly equivalent group design. We calculated the prediction scores of the tablet-administered K-RBANS based on demographics and covariate-test scores for focal tests using norm samples and tested format effects. In addition, we compared the receiver operating characteristic curves to confirm the effectiveness of the K-RBANS for preventing and detecting dementia. Results : In the analysis of raw scores, line orientation showed a significant difference (t=-2.94, p<0.001), and subtests showed small to large effect sizes (0.04-0.86) between paper- and tablet-administered K-RBANS. To investigate the format effect, we compared the predicted scaled scores of the tablet sample to the scaled scores of the norm sample. Consequently, a small effect size (d≤0.20) was observed in most of the subtests, except word list and story recall, which showed a medium effect size (d=0.21), while picture naming and subtests of delayed memory showed significant differences in the one-sample t-test. In addition, the area under the curve of the total scale index (TSI) (0.827; 95% confidence interval, 0.738-0.916) was higher than that of the five indices, ranging from 0.688 to 0.820. The sensitivity and specificity of TSI were 80% and 76%, respectively. Conclusion : The overall results of this study suggest that the tablet-administered K-RBANS showed significant equivalence to the norm sample, although some subtests showed format effects, and it may be used as a valid tool for the brief screening of patients with neuropsychological disorders in Korea.

Keywords

Acknowledgement

We would like to thank Editage (www.editage.co.kr) for English language editing.

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