2018 Volume 33 Issue 3 Pages 344-349
The purpose of this study was to evaluate the reliability and validity of an application for evaluating oral diadochokinesis（ODK）using a tablet-type device for community oral health activities such as late-stage dental examination for the elderly.
The application recorded and evaluated the number of ODK /pa/, /ta/, or /ka/ by either the internal or external microphone of an iPad. In order to verify its validity, we compared the ODKs of the elderly obtained by the application with those collected by an IC voice recorder（IC method）.
The average number of each ODK in 10 repeat measurements by the developed application was within ±1 time. The intraclass correlation coefficients（ICCs）of the ODKs between the application with internal microphone and the IC method were 0.68 for /pa/, 0.79 for /ta/ and 0.85 for /ka/, respectively（p＜0.001）. Furthermore, higher ICCs were obtained between the ODKs of the iPad with external microphone and those of the IC method, 0.86 /pa/, 0.92 /ta/, and 0.86 /ka/, respectively（p＜0.001）. Our results suggest that the developed application for evaluating ODK has sufficient reliability and validity for elderly oral health activities such as group health examination.
