This study aims at investigating the equivalence of mathematics try out scores of junior high school through anchor. In the study, the 2 Parameters Logistic (2PL) model of Item Response Theory (IRT) analysis was used through the Haebara method. The estimation step of the equating parameter utilized the equateIRT package in the R program. The results show that the relationship between try out questions of package 1 and package 2 cannot be said to be equivalent. After analyzing and calculating the regression equation, it can be concluded that package 2 of Mathematics National Examination (MNE) try out questions has a higher level of difficulty than package 1. Equating package 1 to package 2* through the Haebara method for the 2 PL model will provide equal or fair scores for the test takers who work on package 1 and package 2. The samples of questions were taken from MNE questions distributed in Makassar in 2014 which consisted of 2 question packages. Question package 1 was responded to by 2099 students, while question package 2 was responded to by 2068 students. The equating design used was a common item design. With the equating made, in the future, the test takers' ability can be detected properly if they work on similar tests, even though test packages are relatively different.
This study aims to explain the stages of developing a Holistic assessment instrument for the competence of prospective mathematics teachers based on constructs from several literature reviews to measure the competence/ability of prospective mathematics teachers. This development goes through 8 steps of developing non-test instruments. Validity and reliability of instrument traced from 101 students. The initial instrument design carries out initially, then validated with the Aiken formula by 14 experts. The series of initial stages obtained 30 instruments ready to be tested from the original 40 items. The second stage is to perform a confirmatory factor analysis (EFA) followed by testing the construct and convergent validity and looking for the reliability coefficient with confirmatory factor analysis (CFA). The results of the EFA produced 28 items become into four factors, namely pedagogic content knowledge, mathematical content knowledge, positive behavior and respect, teacher enthusiasm (passion). The results of the CFA indicate that the constructs built have construct validity in the good category, convergent validity fulfilled because all AVE values are more than the minimum limit (0.5). Internal reliability (Cronbach's Alpha) = 0.96, Composite Reliability (CR) is in the range 0.88-0.92, and Average Variance Extracted (AVE) is in the range 0.55-0.58. The results of the CFA produced 27 items. Based on the measurement, it can say that the instrument of Holistic Assessment of Prospective Mathematics Teachers is suitable for use at the research.
Diversity is a hot issue discussed in the world of education. With its diversity, Indonesia has great potential to study such things as the geographical diversity equalization factors that affect the quality of education. Implementation of national examinations (NE) as a benchmark and standards from primary to secondary education have a different condition for each location, such as Daerah Istimewa Yogyakarta (DIY) representing the West and Nusa Tenggara Timur (NTT) representing the western region of Indonesia. The focus of this research is to find out how much difference the ability of junior high school students in Indonesia in terms of geographical location. This study uses five DIF detection methods for mathematics NE 2013/2014 school year to analyze students' different abilities. The analysis results show that, in general, the NE questions for the 2013/2014 academic year benefit the focal group / NTT on Algebra, Geometry, and Statistics/Probability material, although with lower ability compared to group reference /DIY. With the analysis carried out, policymakers can take corrective steps to focus more on fixing problems, facilities, and resources teacher power so that problem inequality from aspect geographical there is no future again in Indonesia.
Pembelajaran matematika diusia anak usia dini menjadi perdebatan banyak ahli. Beberapa menganggap bahwa dalam menghadapi dunia modern abad 21, matematika menjadi modal awal untuk berkembang dan bersaing. Ahli lain menganggap anak usia dini masih usia bermain sehingga matematika belum menjadi prioritas dalam pembelajaran prasekolah. Oleh karena itu, melalui penelitian ini peneliti akan menguji model instrumen The Mathematical Development Beliefs Survey (MDBS). Metode penelitian menggunakan metode survey dengan responden calon guru pendidikan anak usia dini sebanyak 34 responden. Analisis data menggunakan Confirmatory Factor Analysis (CFA) untuk menguji validitas, sedangkan reliabilitas instrumen dianalisis dengan menggunakan Cronbach’s alpha. Deskripsi hasil penelitian ini lebih lanjut dipaparkan pada bagian pembahasan artikel ini. Harapannya instrumen ini dapat digunakan untuk menganalisis persepsi guru maupun calon guru paud terhadap pembelajaran matematika pada pendidikan prasekolah.
<p style="text-align: justify;">The accuracy of assessing the capabilities of the process and product in chemical practice activities requires appropriate measurement procedures to be followed. It is crucial to identify the components that can introduce bias while measuring student abilities during the measurement process. This study aims to identify the components or criteria used by teachers to assess student performance in practicum activities and analyze the quality of the rubrics developed. The study was conducted with the participation of three raters, 27 high school students, and nine assessment criteria. A quantitative descriptive approach was employed using the many-facet Rasch model (MFRM) analysis for measurement. The results of the MFRM analysis show no significant measurement bias, with data measurement facets fitting the MFRM model. The reliability of all the facets meets the criteria, and the scale predictor functions appropriately. While all students can easily pass four out of nine items, five items can only be partially passed by students. The assessment criteria that require special attention include communication skills, tools and assembly, interpretation, cleanliness, and accuracy when performing practicums. These criteria provide feedback for teachers and students to ensure successful practicum activities. The Discussion section of this study delves into the findings and their implications.</p>
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