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Widihastuti
Graduate Program Of Educational Research And Evaluation Universitas Negeri Yogyakarta
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Journal : Jurnal Pendidikan MIPA

 1 
Test Items Analysis of Mathematical Problem Solving Ability using a Classical Test Theory Approach Ridwan, Muhammad Rais; Istiyono, Edi; Widihastuti, Widihastuti
Jurnal Pendidikan MIPA Vol 22, No 1 (2021): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

 This study aims to analyze the item characteristics of the mathematics problem-solving ability test instrument using the Classical Test Theory model. The data collection was based on the results of the test documentation as many as 359 students with dichotomous data. Qualitative validation analysis by experts uses the panel method, and quantitative analysis uses the Aiken index and Content Validity Ratio (CVR), while quantitative validation uses biserial point correlation. The test reliability index used the Alpha-Cronbach method. The results of qualitative validation show that all items correspond to the indicators of solving mathematical problems, but technically writing a few items needs improvement. Quantitative analysis using the Aiken index and CVR shows all items are valid with good validity. The reliability of the test is stable, with a coefficient of 0.83. Then, the test instrument consists of items with very difficult, difficult, and easy levels. All items were able to distinguish the test taker's ability and the effectiveness of the distractor to function correctly. Keywords: classical test theory, biserial point correlation, validity, reliability. DOI: http://dx.doi.org/10.23960/jpmipa/v22i1.pp98-111   
Co-Authors Adilla Desy Rizbudiani Agus Dwi Febrianto Akbarini, Nur Rahmi Ali Muhson Alpindo, Okta Amat Jaedun Anik Ghufron Anita Volintia Dewi Arief Hamdani Gunawan, Arief Hamdani Arrosyid, Muhammad Salman Benedicta Rani Nugraheni Bestari, Afif Ghurub Daniel Jesayanto Jaya Daryono, Rihab Wit Djidu, Hasan Duden Saepuzaman, Duden Edi Istiyono Edy Supriyadi Elfrida Ratnawati Emy Budiastuti Eva, Farida Farida Agus Setiawati Fatwa Dewi Apriliani Fitri Rahmawati Fransiska Mbari, Maria Angelina Hanifah Nur Istanti Haryanto Haryanto Ilyas Ilyas Istiyono, E. Kamal, Saefudin Kamis, Arasinah Kapti Asiatun Karim, Fatimah Lapele, Fitria Making, Melkior Muda Martiana, Aris Marzuki Marzuki Maslahah, Sayidatul Mohammad Adam Jerusalem Muh. Fitrah, Muh. Muhammad Istiqlal, Muhammad Muhammad Rais Ridwan Mukti, T. S. Mustakim, S. S. Ni Luh Sekar Astuti Ningsih, Sri Nurfadillah Noor Fitrihana Nugraheni, Benedicta Rani NUR KHOLIFAH Nurfitria, Miftahul Annisah Nurmasitah, Sita Nurwahyuni, Linda Nuryana, Zalik Oscar, Oscar Prihono, Eko Wahyunanto Purwantoro, Susilo Adi Putu Diah Ari Kusumadewi Rahmat Danni Ria, Reny Rina Safitri Rini, Angga Rosid Bahar Sabon, Yuliana Olga Siba Safitri, Islamiani Salimah, Zahrotun Salman Arrosyid, Muhammad Samsul Hadi Santos, Mariano Dos Saputri, Ryna Ginanti Eka Ayu Sari, Desy Kumala Siti Nurjanah Sri Wening Sri Widarwati, Sri Sudji Munadi Sugiyem, Sugiyem Suranto, S. Sutanto Sutanto Suyata Suyata Syarief Fajaruddin Syukrul Hamdi Ulfa Ulfa Wahyudi Wahyudi Warno, Kusminarko Wulaningrum, Tyas Wulansari Prasetyaningtyas, Wulansari Yazel Aze, Hazevi Atila Yogawati, Nursanti Dwi Zafrullah, Zafrullah