Rasch Modeling: A Multiple Choice Chemistry Test

Winarti, Atiek; Mubarak, Al

doi:10.23917/ijolae.v2i1.8985

Cited by 9 publications

(8 citation statements)

References 16 publications

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“…for the highest logit value is 2.27 logit, and the lowest value is -1.7 [14]. Based on construct validity, namely from three statistical criteria starting from the MNSQ outfit with the accepted criteria being < 1.5, table 1 shows the questions on A2 exceed 1.5, but the questions are still considered valid because the two criteria from the Rasch model are still in the accepted range, namely on outfit ZSTD 0.7 (accepted range -1.9 < outfit ZSTD < 1.9) and PT Mean Corr 0.31 (with accepted value is > 0.00) [26].…”

Section: Results and Analysis Of Questions And Reasonsmentioning

confidence: 99%

Student's Chemical Bonds Concept: Rasch Model Analysis

Mulyanti

Nugroho

Harahap

2023

Int. J. Chem. Educ. Res.

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This study was conducted to measure students' conceptual understanding of chemical bonds. The test through an online form includes a two-level test—a total of 50 students who have studied chemical bonds as research subjects. The method used is quantitative through analysis with the dichotomous Rasch model. A total of seven sub-concepts of chemical bonds have been tested on students through a two-level test, namely questions, and reasons. The questions given were declared valid and reliable according to the Rasch model. The concept that is considered the most difficult for students is the description of orbitals and molecular hybridization

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Section: Results and Analysis Of Questions And Reasonsmentioning

confidence: 99%

Student's Chemical Bonds Concept: Rasch Model Analysis

Mulyanti

Nugroho

Harahap

2023

Int. J. Chem. Educ. Res.

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“…Yasin et al (2018) menjelaskan bahwa model pengukuran Rasch merupakan model yang dibentuk sebagai hasil pertimbangan meliputi kemampuan masing-masing responden yang menjawab tes dan kesulitan setiap butir item tes. Winarti & Mubarak (2020)…”

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Application of the Rasch Model on the Test Instrument to Analyze the Problem-Solving Ability of Students in Acid-Base Solutions Materials

et al. 2021

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APPLICATION OF THE RASCH MODEL ON THE TEST INSTRUMENT TO ANALYZE THE PROBLEM-SOLVING ABILITY OF STUDENTS IN ACID-BASE SOLUTIONS MATERIALSAbstractIn 21st century education, students are required to have high problem-solving skills. This study aims to reveal the quality of the test instrument with the Rasch model. Descriptive quantitative research is used with total of 38 students of class XI SMAN 2 Semarang became the subjects in this study. The data obtained in this study is from a combination of student response patterns on the product development diagnostic test instrument. The data analysis used was IRT Rasch. Rasch model analysis for summary statistics, item-fit, wright-map, item-measure, person-measure, person-fit dan item-DIF. The value of person reliability is 0.78(sufficient), and item reliability value is 0.8(good). Cronbach's alpha value is 0.82 (very good). Based on the analysis Rasch model, it was found that there were two students (12P and 37P) whose response patterns were not ideal. The results showed problem-solving ability profile of students in the very high category of 26%, high of 29%, average of 16%, low of 13%, and very low of 16%. The results of this study indicate that the test instrument can be used for further research in measuring student problem solving and the Rasch model contributes to teachers and schools in identifying students' abilities in more detail. AbstrakPada pendidikan abad-21, siswa dituntut harus memiliki keterampilan problem-solving yang tinggi. Penilaian keterampilan problem-solving dapat dilakukan secara online yang terintegrasi pada soal tes pengetahuan. Penelitian ini bertujuan untuk mengungkap kualitas instrumen tes dengan model Rasch. Penelitian kuantitatif deskriptif digunakan dalam penelitian ini. Total 38 siswa kelas XI SMAN 2 Semarang menjadi subjek dalam penelitian ini. Data yang diperoleh dalam penelitian ini adalah dari kombinasi pola respon jawaban siswa pada instrumen tes diagnostik produk pengembangan. Analisis data yang digunakan menggunakan Item Response Theory (IRT) model Rasch. Analisis model Rasch untuk summary statistics, item-fit, wright-map, item-measure, person-measure, person-fit dan item-DIF. Nilai person reliability didapatkan sebesar 0,78, kriteria cukup, dan nilai item reliability sebesar 0,85, kriteria bagus. Nilai alpha Cronbach sebesar 0,82, kriteria bagus sekali. Berdasarkan hasil analisis Rasch model ditemukan ada dua siswa yang pola responnya tidak ideal yaitu siswa 12P dan 37P. Hasil penelitian menunjukkan profil kemampuan problem-solving siswa dengan kategori sangat tinggi sebesar 26%, tinggi sebesar 29%, rata-rata sebesar 16%, rendah sebesar 13%, dan sangat rendah sebesar 16%. Hasil penelitian ini menunjukkan bahwa instrumen tes dapat digunakan untuk penelitian lanjutan dalam mengukur pemecahan masalah siswa dan model Rasch memberikan kontribusi kepada guru dan sekolah dalam mengidentifikasi kemampuan siswa lebih rinci

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“…The Rasch model will analyze how a test can do well or not in measuring latent human traits, including how the quality of the tests that have been tested (Vindbjerg et al, 2020;Winarti & Mubarak, 2019). Analysis with the Rasch model can be a reference in determining the validity and reliability of a test, by comparing the standards that exist in the model (Adams et al, 2021;van de Grift et al, 2019) on students' cognitive abilities in understanding concepts and thinking skills after practicum activities in the form of multiple choice tests.…”

Section: Introductionmentioning

confidence: 99%

Development of items in Acid-Base Identification Experiments Using Natural Materials: Validity Test with Rasch Model Analysis

Mulyanti

Sukmawati²,

Tarkin³

2022

phen

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The development of the test in the form of multiple choice items as 18 questions, aims to measure students' abilities in the experiment of identifying acid-base compounds with natural indicators. The study used descriptive quantitative methods. 79 high school students who have studied acid-base experiment with natural indicators, as the subject of validity test. Validity analyzed by Rasch model in the Winsteps program, including the level of problem difficulty, item validity, construct validity, content validity, and instrument reliability. The results obtained are evenly distributed, so that it can measure students' abilities at various levels of knowledge. Construct validity is evidenced by the raw variance value of 31%, and content validity shows that the questions fit the Rasch model. The feasibility of the instrument can also be seen from its very good reliability value of 0.91. The developed test can be used as a measuring tool for the success of acid-base identification practicum with natural indicators, which have been developed in various researches on the development of environmentally friendly acid-base practicums from natural materials.

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Rasch Modeling: A Multiple Choice Chemistry Test

Cited by 9 publications

References 16 publications

Student's Chemical Bonds Concept: Rasch Model Analysis

Student's Chemical Bonds Concept: Rasch Model Analysis

Application of the Rasch Model on the Test Instrument to Analyze the Problem-Solving Ability of Students in Acid-Base Solutions Materials

Development of items in Acid-Base Identification Experiments Using Natural Materials: Validity Test with Rasch Model Analysis

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