Validation of Chinese Version of Mishel's Uncertainty in Illness Scale

　　The purpose of this study was to examine the usefulness of the Mishel Uncertainty in Illness Scale ( MUIS ) by conducting item analysis, testing validity and reliability of the scale. The study was conducted in two large teaching hospitals. The sample included 65 patients with acute myocardial infarction. The MUIS was translated into Chinese. Three items was deleted after item analysis. Validity was supported by revealing 0.92 of content validity index and 0. 571 (p<0.001) of concurrent validity. The Crobach's coefficient alpha was 0.865. The results showed that Chinese version of MUIS was an acceptable instrument to measure uncertainty after deleting three items from the MUIS.