Application of a multidimensional computerized adaptive test for a Clinical Dementia Rating Scale through computer-aided techniques.

Background: With the increasingly rapid growth of the elderly population, individuals aged 65 years and above now compose 14% of Taiwanese citizens, thereby making Taiwanese society an aged society. A leading factor that affects the elderly population is dementia. A method of precisely and efficient...

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Publicado en:Annals of General Psychiatry Vol. 18; no. 1
Autores principales: Lee, Yi-Lien, Lin, Kao-Chang, Chien, Tsair-Wei
Formato: research tables/charts Journal Article
Publicado: BioMed Central 5/17/2019
Acceso en línea:Ver este registro en EBSCOhost
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      jtl: Annals of General Psychiatry
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      dt: 5/17/2019
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      pub: BioMed Central
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        136502453
        136502453
        136502453
        10.1186/s12991-019-0228-4
        136502453
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        atl: Application of a multidimensional computerized adaptive test for a Clinical Dementia Rating Scale through computer-aided techniques.
      aug:
        au:
          Lee, Yi-Lien
          Lin, Kao-Chang
          Chien, Tsair-Wei
        affil: Department of Medical Affairs, Chi-Mei Medical Center, No. 901, Chung Hwa Road, Yung Kung Dist., 710, Tainan, Taiwan
      sug:
        subj:
          Computerized Adaptive Testing
          Dementia Diagnosis
          Severity of Disability
          Computers and Computerization
          Tablets
          Smartphone
          Outpatients
          Pearson's Correlation Coefficient
          Website Development
          Aged
          Taiwan
          Aged: 65+ years
      ab: Background: With the increasingly rapid growth of the elderly population, individuals aged 65 years and above now compose 14% of Taiwanese citizens, thereby making Taiwanese society an aged society. A leading factor that affects the elderly population is dementia. A method of precisely and efficiently examining patients with dementia through multidimensional computer adaptive testing (MCAT) to accurately determine the patients' stage of dementia needs to be developed. This study aimed to develop online MCAT that family members can use on their own computers, tablets, or smartphones to predict the extent of dementia for patients responding to the Clinical Dementia Rating (CDR) instrument. Methods: The CDR was applied to 366 outpatients in a hospital in Taiwan. MCAT was employed with parameters for items across eight dimensions, and responses were simulated to compare the efficiency and precision between MCAT and non-adaptive testing (NAT). The number of items saved and the estimated person measures was compared between the results of MCAT and NAT, respectively. Results: MCAT yielded substantially more precise measurements and was considerably more efficient than NAT. MCAT achieved 20.19% (= [53 − 42.3]/53) saving in item length when the measurement differences were less than 5%. Pearson correlation coefficients were highly consistent among the eight domains. The cut-off points for the overall measures were − 1.4, − 0.4, 0.4, and 1.4 logits, which was equivalent to 20% for each portion in percentile scores. Substantially fewer items were answered through MCAT than through NAT without compromising the precision of MCAT. Conclusions: Developing a website that family members can use on their own computers, tablets, and smartphones to help them perform online screening and prediction of dementia in older adults is useful and manageable.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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