Аннотация
The research is a development of character assessment instrument for high school students in coastal areas in Maluku. This study aims to test the quality of character assessment instrument of high school students in coastal areas of Maluku which consists of content validity, construct validity and reliability. The sample in this study amounted to 56 students with the sampling technique using random sampling technique. Content validity used is Aiken's V, while Confirmatory Factory Analysis is used to prove construct validity. Reliability analysis using Cronbach Alpha. The results of the analysis show that the content validity of the character assessment instrument of coastal high school students in Maluku all items have met the valid criteria, construct validity with CFA provides evidence that there are 18 items that do not fit, while the reliability coefficient is 0.9 with a very high category.