Psychometric properties of the Loewenstein Occupational Therapy Cognitive Assessment-Second Edition in Taiwanese persons with schizophrenia.

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  • Author(s): Su CY;Su CY; Chen WL; Tsai PC; Tsai CY; Su WL
  • Source:
    The American journal of occupational therapy : official publication of the American Occupational Therapy Association [Am J Occup Ther] 2007 Jan-Feb; Vol. 61 (1), pp. 108-18.
  • Publication Type:
    Journal Article; Research Support, Non-U.S. Gov't; Validation Study
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Published For The American Occupational Therapy Association By AJOT Pub. Co Country of Publication: United States NLM ID: 7705978 Publication Model: Print Cited Medium: Print ISSN: 0272-9490 (Print) Linking ISSN: 02729490 NLM ISO Abbreviation: Am J Occup Ther Subsets: MEDLINE
    • Publication Information:
      Publication: Rockville, MD : Published For The American Occupational Therapy Association By AJOT Pub. Co
      Original Publication: Boston, Mass. : Published for the American Occupational Therapy Association by AJOT Pub. Co., c1947-
    • Subject Terms:
      Occupational Therapy* ; Psychometrics* ; Schizophrenia* ; Surveys and Questionnaires*; Academic Medical Centers ; Adult ; Female ; Humans ; Male ; Middle Aged ; Taiwan
    • Abstract:
      Objective: This study sought to determine the psychometric properties for the Loewenstein Occupational Therapy Cognitive Assessment-Second Edition (LOTCA-II) in a population of persons with schizophrenia.
      Method: Sixty-four participants with schizophrenia were administered the LOTCA-II at baseline, and 43 of these were randomly selected to undertake four more standardized measures of cognitive and instrumental activities of daily living (IADL) functions to test convergent validity. One week later, 48 randomly selected participants from the total sample were readministered the LOTCA-II to determine test-retest reliability.
      Results: Substantial ceiling effects existed in 96% of LOTCA-II items. Cronbach's alpha for all six sub-tests ranged from .20 to .91; the alpha for the global scale was .90. Intraclass correlation coefficients ranged from .49 to .89 for the subtests and .95 for the full LOTCA-II. Low to moderate correlations were found between LOTCA-II total score and scores on cognitive and IADL measures. No overall significant differences in subtest scores were found across participants differing in employment status.
      Conclusion: LOTCA-II performance is best interpreted in the context of total score. Further revision of the test items is recommended for a more reliable and valid use of the LOTCA-II in persons with schizophrenia.
    • Publication Date:
      Date Created: 20070217 Date Completed: 20070308 Latest Revision: 20191210
    • Publication Date:
      20231215
    • Accession Number:
      10.5014/ajot.61.1.108
    • Accession Number:
      17302112