Aim: To improve access to cognitive testing for older adults, the reliability and acceptability of a speech-based cognitive test administered by a social robot were investigated.
Methods: The Japanese version of the Telephone Interview for Cognitive Status was administered by a social robot to participants recruited from retirement homes and adult daycare facilities. The robot's dialogue and gestures were preprogrammed, while the researcher controlled the timing of proceeding to the next question and scored participants' responses. We examined the internal consistency, alternate form reliability (experiment 1) and test-retest reliability (experiment 2) of the cognitive test. The acceptability of the cognitive test was also examined using a questionnaire in experiment 2.
Results: A total of 66 individuals (mean age 81.2 ± 5.8 years) participated in experiment 1; the internal consistency (Cronbach's α) of the test was 0.691 and its alternate form reliability (measured by interclass correlation coefficient) was 0.728. A total of 40 of these individuals (mean age 82.0 ± 5.4 years) also participated in experiment 2, and the test-retest reliability was 0.818. According to the questionnaire responses, over half of the participants wanted (or very much wanted) to use the robot version of the test to measure the deterioration of their cognitive function.
Conclusions: A robot-administered cognitive test might have satisfactory reliability and acceptability to community-dwelling older adults if those aspects of the test implemented by the researcher can also be successfully automated. Geriatr Gerontol Int 2019; 19: 552-556.
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