ABSTRACT

Objective : This study attempted to develop evaluation items used to measure elderly drivers’ quality of life. Methods : Opinions from experts were collected from 39 elderly driving-related expert panels from April throughOctober 2014 using the Delphi method. A Delphi survey was carried out three times, and based on previousstudies, the first Delphi survey gathered opinions using a mix of 40 closed-ended questions and open-endedquestions reconstructed regarding the meaning of the quality of life. The second Delphi survey was conductedafter the processes of deleting and modifying certain items based on the first Delphi survey. Including the resultsand responses of the second survey, the comments were reconsidered and modified through a third Delphi survey. Results : 64 items were selected as the first Delphi result, and as the second Delphi result, 51 items were analyzedafter the processes of deleting and modifying the values below a content validity ratio of .33 and the items witha duplicated meaning. Finally, in the third Delphi result, two invalid items out of 51 items were deleted, 49 itemswere drawn out. The average content validity ratio of the final Delphi survey was .84, stability, .13, convergence,.30, and consensus, .85, which were high. Conclusion : This study verified the content validity of the evaluation items for elderly drivers’ quality of life. Inthe future, it is expected that, through verifying validity and reliability, they will be used as a standardizedassessment tool in the clinical environment.