Analysis of Four-tier Diagnostic Test on The Topic of Temperature and Heat in High School

This study aims to analyze the feasibility of four-tier diagnostic test items given class XI high school students. research is a quantitative descriptive study, which collects student answer sheets as data then analyzed for item selection, reliability, level difficulty, discriminating power, distractor functioning, and readability test. was conducted on 30 students at SMA N 1 Slawi. The results concluded that in selection from 21 questions made, there were 16 suitable use 5 not use. In reliability obtained by value rcount 0.760. are easy category, 14 medium 2 difficult category. differentiating good category 8 questions, sufficient bad questions. function 10 whose distractors well 11 do properly. Readability according assessment questionnaires, categorized