摘要：This research aims at measuring the Indonesian Elementary Schools student’s creativity in science processing skills (SPS) of life aspects on Natural Sciences subject using tests of which items are fitted based on Partial Credit Model (PCM). This first stage of the research aims to get the anchor items which are used for tests in the second stage. In the first stage, the researchers developed a blue print of SPS and its items; performed expert’s judgment, and tried out the test items to elementary students of grade IV and V. The findings show that one of all items is not fitted referring to PCM. In the second stage, the test items were divided into four test sets and each of test set is completed with anchor items. The testees were elementary school students of grade IV and V from five regencies/cities in Yogyakarta Special Province (DIY). The findings show that all items are fitted referring to PCM. In reference to log it scale, the items difficulty index of creativity for Basic Skills and Processing Skills is higher than the average ability of the student’s creativity skills. This indicates that their creativity is still low.
关键词：Creativity; science processing skills; partial credit model
