Abstract
Standing-up motion from supine position is evaluated by its motion process or by the required time to finish. The present study examined the interrater and intrarater reliability for the measurement of the time to stand up from supine position on the basis of the generalizability theory. Six examiners and 6 examinees, all of whom had no experience of measuring standing-up motions, participated in the study. Examinees were asked to stand up from supine position as quick as possible and the examiners measured the time by a stopwatch. First, the reliability coefficient of the data was obtained, and the number of examiners and measurements were then determined for guaranteeing high reliability. As a result, the conditions for high reliability were the three or more repetitive measurements by one examiner, and two or more repetitive measurements by two or more examiners. The measurement of the required time for standing-up motion can guarantee high reliability under a specified condition. Further studies are needed to conform the judgement for the end of motion in the measurement among disabled, and to examine the effect of an examiner's skill on the measurement.
