Development, Reliability and Validity of the Thai Healthy Aging Survey



We describe the development of a healthy aging survey for older Thai adults. Domains of physical, psychological, social and spiritual health were identified as relevant based on focus groups of older Thai adults and a synthesis of Western and Thai literature on aging. A 4-phase approach was employed. First, for each domain, we selected measures that had been used in Thailand and/or in other countries, and adapted them for older Thai adults. Second, 2 forward translations from English to Thai and 1 back translation were conducted. Third, the survey was pretested by using a general debriefing pretest and cognitive interviewing. Last, the final scales were selected based on factor analysis and psychometric properties assessed in a sample of 350 older Thai community-dwelling adults. Factor analysis explained 61.8 - 74.5 % of the variance within each domain. The final survey consisted of 72 items with 16 scales. Most scales achieved good reliability; 13 scales had a Cronbach’s alpha greater than 0.70 (range 0.48 and 0.93). A 2-week test-retest reliability showed acceptable Pearson correlations. The first-generation survey demonstrates good psychometric properties and provides the basis for measuring healthy aging in the older Thai adult population. The survey may also be applicable to other cultures.


Healthy aging, development, older adults, survey, Thai, validity, reliability

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