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Journal : m a t h l i n e jurnal matematika dan pendidikan matematika

Development and Validation of A Self-Confidence Measurement Instrument In Mathematics Learning Using The Rasch Model Dewanti, Sintha Sih; Ashabulabib, Adib; Dewi, Indriana Puspita; Islamiyah, Aris Mislikhatun
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 10 No. 1 (2025): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v10i1.697

Abstract

Self-confidence is a critical factor in mathematics learning, influencing students' engagement and performance. However, studies show that Indonesian students often lack confidence in mathematics subject, hindering their academic potential. Accurate instruments are needed to measure and address this issue effectively. This tudy aims to develop a self-confidence measurement instrument for mathematics learning among secondary school students. The instrument comprises 25 statements categorized into four main aspects. The research employs a descriptive quantitative method with the Rasch Model approach and utilizes exploratory and confirmatory factor analysis. The sample consists of 122 randomly selected tenth-grade students in Yogyakarta. The results indicate that the developed instrument has high validity, with an Aiken's V coefficient of 0.99, and very high reliability, evidenced by a Cronbach's Alpha coefficient of 0.845 with a total of 18 items used. Factor analysis shows that the items in the self-confidence questionnaire meet the unidimensionality requirement, although some items need correction to enhance measurement accuracy for one self-confidence indicator. Overall, this instrument provides a valid and reliable tool for measuring students' self-confidence in mathematics learning, potentially contributing to the enhancement of students' confidence in this subject. So that, 18 statements are more efficient to use, without reducing the scope of the self-confident aspect being measured. The results allow the use of instruments for various levels of education and support the implementation of more personalized learning strategies.
Co-Authors 'Azizah, Wida Nurul 'Ulya, Khomisa Anisatul 'Ulya, Khomisa Anisatul ABDUL MANAF Abroto Aji Joko Budi Pramono Akmal Tsaqifiya Salma Al Hawari, Defahayu As Syaura Al Kahar, Aris Armeth Daud Al Kahfi, Sidik Alam, M. Syahrul Qhodi Alfi Mubarok, Muhammad Sa'dan Alkhairi, Aulia Azmi Anggraini, Rofiyu Anggun Rachmawati Putri Anriani, Titi Antia, Vindy Anwar, Fadllia Husnul Apliyanti, Selvy Ashabulabib, Adib Aulia Rahayu Barsihanor, Barsihanor Bogatyreva, Svetlana Nikolaevna Budi, Tegar Setia Chusna Maulida Daimah, Ummu Soim Delimanugari, Daluti Desyi Rosita Dewi, Indriana Puspita Diana, Safina Putri Eka Fadhilah Apriliani Elya Umi Hanik Fadhila, Yoan Afra Faslurrohman, Muhammad Fauziyah, Fasya Nur Galuh Nashrulloh KMR Hanifah, Alma Aulia Hari Pratikno Hasanah, Laili Mufidatul Hayati, Lutfiah Isfa Hayu Susilowati Hidayati, Zahrani Nida Hilmy Faizah Himmatul 'Ulya Huda, Noor Auliya Ibrahim Ibrahim Ibrahim Ika Ernawati Islamiyah, Aris Mislikhatun Isnaini, Safira Wahyu Istiningsih, Istiningsih Izza Umniatul Arifah Jamil Suprihatiningrum Jasmine Nurul Izzah Jasmine Nurul Izzah Kartono, Atha Irdina Nursabrina Khodijatul Qubro, Nia Aulia Kholifatul Fatoni Sholihin Khozainul Muna Kumening, Ayu Sulistya La Ode Mardin Lailatul Hidayati Listriyah Listriyah Maemonah, Maemonah Mahmud Arif Mam, Socheath Minati Rina Hardiyana Mufida, Naila Rahma Mufida, Naila Rahma Muhakimah, Ihtiyatul Muhammad Rosyid Ridho Muhammad Singgih Muhammad, Arif Fadhil Muhammad, Arif Fadhil Muna, Khozainul Musthofiatur Rochmah Mutia Ulfa Na'imah, Na'imah Nadia Putri M. Posangi Nazliati, Nazliati Na’imah, Na’imah Ningrum, Septiyani Daya Nisa, Nastiti Khairun Niswah, Hulwatun Nursaadah, Ida NURUL HIDAYAH Nurul Nurhayati Pramesti, Fauziah Indria Priharvian, Syifa Maharani PUJI LESTARI Pusparini, Dinar Qotrunnada Qotrunnada Rahman, M. Faqih Syifa Rahmawati Raudhatunnur, Raudhatunnur Rohmah, Ulya Shofirotur Rosita, Desyi Safitri, Rizka Safitri Said Subhan Posangi Sangkot Sirait Sari, Nur Aini Amalia Septian Nur Ika Trisnawati Shecha Salsabila Shilfany Putri Shinta Puspa Kiranasari Sigit Prasetyo Sigit Prasetyo Siti Fatonah Siti Liani Siti Nurhalimah Siti Zahratul Kamilati Sofwatun Nida, Sofwatun Subadi, Diva Nurfiana Sufraini, Sufraini Sugiarti Sugiarti Sugiarti, Sugiarti Sukiman Sumardi Sumbaji Putranto suparni Susetyawati, Endang Suwardi Syifa Maharani Priharvian Tasya Alma Qolbi Tasya Alma Qolbi Tegar Drajat Alamsyah Waffiq Lanaa Zakya A'maali Wan Suraya Widyaningrum, Anggita Cahya Widyawati Wijayanti, Ardhina Wirdatul Hasanah Zerenay, Ceyda Zupia Annisa