Abstract
Introduction: We translated into Japanese the Advanced Directive (AD) Knowledge Test and the AD Attitude Survey, which were created by Murphy P (2000), and checked the reliability and validity of these scales for use in local older residents. Method: Subjects were members of the Elderly Meeting of A city (N = 104). We administered questionnaires using the AD Knowledge Test and AD Attitude Survey for Japanese. The statistical analyses were conducted by I-T correlation analysis and checked for internal consistency with Cronbach's alpha. The correlations with intent to create an AD from a preceding study related to these scales were checked with t-tests. Results: The numbers and percentages of both men and women were 51 and 50%, and the average age was 74.9 years old (SD = 6.6). I-T correlation checks identified 2 items of 0.3 or less in each measure and these were deleted, leaving 8 items in the AD Knowledge Test and 11 items in the AD Attitude Survey for Japanese. Cronbach's alpha for the AD Knowledge Test was0.67 and for the AD Attitude Survey,0.86. In criterion-related validation, the AD Knowledge test was related to "suffering serious disease and operations", and the AD Attitude Survey was related to "have heard about AD" and "suffering serious disease and operations". Conclusion: These results suggest that the reliability of AD Attitude Survey has been verified. However, further checking with additional data including verification of concurrent validity is required.
