THE RELATIONS BETWEEN SELF AND INSTRUCTOR'S EVALUATION OF DRIVING SKILLS AND THE MORALE OF ELDERLY JAPANESE DRIVER
Fujikawa, M., Hiroshima University, Japan
Improving the safety of elderly driver is the general aim of the project. The purpose of this study was to investigate the relationship between elderly drivers' subjective versus objective driving skills and performances on the one side and geriatric morale scale values of the drivers on the other side. The participants were 102 elderly drivers (74-89 years old) who attended a driver's license renewal course for people 75 years old and above in Japan. They answered three questionnaires employing 4-point agreement scales: Philadelphia Geriatric Center morale scale by Lawton, consciousness of aging and of driving performance, and avoidance driving habits. 13 instructors individually observed about 10 minutes driving (on a simple course in daylight) of each of the 102 elderly drivers. The instructors answered questionnaires employing 4-point agreement scale as follows: Self-evaluation of driving performance, self- estimation of the driver's consciousness of aging and estimation of avoidance habits. The major finding was that that Lawton's morale scale values are strongly related to the differences between the self-evaluations and instructor evaluations.