Abstract
This research was conducted by focusing on the formulated question regarding the test scores validity, reliability and item analysis involving the discrimination power and index difficulty in order to provide detail information leading to the improvement of test items construction. The quality of each particular item was analyzed in terms of item difficulty, item discrimination and distractor analysis. The statistical tests were used to compute the reliability of the test by applying The Kuder-Richardson Formula (KR20). The analysis of 50 test items was computed using Microsoft Office Excel. A descriptive method was applied to describe and examined the data. The research findings showed the test fulfilled the criteria of having content validity which was categorized as a low validity. Meanwhile, the reliability value of the test scores was 0.521010831 (0.52) categorized as lower reliability and revision of test. Through the 50 items examined, there were 21 items that were in need of improvement which were classified into “easy” for the index difficulty and “poor” category for the discriminability by the total 26 items (52%). It means more than 50% of the test items need to be revised as the items do not meet the criteria. It is suggested that in order to measure students’ performance effectively, essential improvement need to be evaluated where items with “poor” discrimination index should be reviewed.
 
Highlights
An assessment, known as a test, shows significant role in learning process of education that provides information to the teacher on the area to which learning outcomes have been achieved by a student
The data of this research were the items of the final test consisting the 50 items of the English multiplechoice items test that was administered as a final assessment at the first semester for Junior High School students of SMPN 44 Surabaya in the academic year 2019/2020 which held on Wednesday, November 20th, 2019
The results of the test analysis were presented in order to answer the research question about the test validity, the test reliability and the item analysis covering the level of difficulty and the discriminating power
Summary
Known as a test, shows significant role in learning process of education that provides information to the teacher on the area to which learning outcomes have been achieved by a student. Assessment identifies what students know, understand, can do and feel at different stages in the learning process. There are several forms of assessments con be done either written form or oral form. It is expected that there will be changes on the part of the learners. One of the suitable ways to comprehend students’ ability, especially in using English, uses evaluation or test. Test is a procedure or an appliance used to know or measure something by means that every test should be reliable which measure precisely whatever it is supposed to measure Test is a procedure or an appliance used to know or measure something by means that every test should be reliable which measure precisely whatever it is supposed to measure (Heaton, 1990, p. 7)
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