ABSTRACT Sulistiyowati, Dani Eka (2024). Investigating Language Testing and Assessment in Elt: Item Analysis of English Summative Test in High School Students. An Undergraduate Thesis. English Department, Faculty of Education and Teacher Training, Tidar University. Advisor I Moch. Malik Al Firdaus, M. Pd., Advisor II Winda Candra Hantari, M. A. Keywords: difficulty level, discrimination ind…