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All Journal RADIASI: Jurnal Berkala Pendidikan Fisika Jurnal Pengajaran MIPA Tadris: Jurnal keguruan dan Ilmu Tarbiyah Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Wahana Elektronik Pendidikan Fisika Jurnal Pendidikan Fisika Journal of Teaching and Learning Physics Momentum: Physics Education Journal Jurnal Pemberdayaan Masyarakat
Heni Rusnayati
Jurusan Pen.Fisika
Education Electrical & Electronics Engineering Mathematics Physics Social Sciences

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Diagnostic Test Development for Uncovering Student Misconceptions in Mechanical Wave Characteristics Topic Nurohmah, Aneu Siti; Samsudin, Achmad; Rusnayati, Heni; Sozbilir, Mustafa
Tadris: Jurnal Keguruan dan Ilmu Tarbiyah Vol 10 No 2 (2025): Tadris: Jurnal Keguruan dan Ilmu Tarbiyah
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/tadris.v10i1.27447

Abstract

High school students have studied the characteristics of mechanical waves, including definitions, types, physical quantities, and properties of waves. However, many students still hold misconceptions about these concepts. This study aims to describe the validity and reliability of the Four-Tier Mechanical Wave Characteristics (FTMWC) diagnostic test instrument, developed to identify misconceptions among high school students regarding mechanical wave characteristics. The FTMWC was created through development research using the 4D model (Define, Design, Develop, Disseminate). The study involved 112 grade XI high school students who had already studied mechanical waves and were selected using purposive sampling. The instrument was analyzed using the Rasch Model with Winsteps software version 3.73. The validity of the FTMWC instrument was confirmed based on item dimensionality. The construct validity yielded a Cronbach's Alpha value of 0.61, indicating that the instrument sufficiently explains the interaction between participants and items. The item reliability was found to be 0.95, categorized as "very high." Conceptual analysis using Wright maps and Guttman scalograms revealed that the most common misconception was related to constructive interference in the sub-concept of wave properties. In conclusion, the FTMWC instrument is valid and reliable for assessing students' conceptions and identifying misconceptions about mechanical wave characteristics.
Co-Authors - Wiendartun Achmad Samsudin Aditya, Raldy Danawan, Agus David E Tarigan Dewi Eliani Nurjanah E. Suhendi Hera Novia Illahi, Beta Kurnia Iyon Suyana Lina Aviyanti Meilani, Hasna Azka Nawas, Abu Nazila, Nazwa Nurohmah, Aneu Siti Putri, Wilda Oqctaria Neizar Saeful Karim Sari Yunita Sözbilir, Mustafa Winny Liliawati Yayan Sopian Zaelani