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Wardani Rahayu

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Author-ID : 2388761

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Neuroscience Nursing Physics Public Health Social Sciences Transportation Other

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METODE ESTIMASI PARAMETER DAN METODE EQUATING PADA UKURAN SAMPEL KECIL BERDASARKAN ITEM RESPONS THEORY Rahayu, Wardani
SEMIRATA 2015 Prosiding Bidang Matematika
Publisher : SEMIRATA 2015

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.268 KB)

Tujuan penelitian ini adalah untuk mengetahui keakurasian metode estimasi parameter butir paramater dan metode equating pada ukuran sampel kecil berdasarkan Item Response theory. Metode estimasi parameter yang digunakan adalah metode estimasi Joint Maxsimum Likelihood dan metode estimasi Bayesian,Â metode equating yang digunakan adalah metode Rerata dan Sigma dan Tegar Rerata dan Sigma. Estimasi parameter menggunakan model logistik dua paramater pada ukuran sampel kecil yakni 300. Sumber data menggunakan data Ujian Nasional Matematika SMP tahun 2011. Keakurasian metode estiamsi paramater dan metode equating dilihat dari nilai Root Mean Square Error (RMSE). Hasil penelitian ini adalah pada ukuran sampel kecil, metode equating yang sama menghasilkan keakurasian yang sama antara metode Joint Maxsimum Likelihood dan metode Bayesian, sementara pada metode estimasi paramater sama, menghasilkan keakurasian yang berbeda antara metode Rerata dan Sigma dan Tegar Rerata dan Sigma. Â Katakunci: metode estimasi parameter, metode equating, ukuran sampel kecil, RMSE

Development of Interactive Mathematics Multimedia Teaching Materials for Building Space in Class V Primary Schools Gartika, Euis; Rahayu, Wardani; Utomo, Erry
International Journal for Educational and Vocational Studies Vol 1, No 5 (2019): September 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v1i5.1717

This study aims to produce the development of interactive multimedia that is feasible to use in the mathematics of building space. The subjects of this study were in class V of Panaragan 1 Elementary School in Bogor, Semplak 2 Elementary School, and Bogor 1 Police Public Elementary School. This interactive multimedia development uses a type of research and development concerning the model developed by Lee and Owens, there are 5 stages: assessment / analyze, instructional design, development, implementation, and evaluation. The media developed was validated by material and media experts before being tested on students. The instruments used to collect the data were 4.4 expert media feasibility test questionnaires, material expert questionnaire feasibility test 4.3 trial language feasibility expert 4.2, declared feasible for use in learning.

The Effectiveness of Mathematics E-Modules with a Contextual Approach on Geometry Matters to Improving Studentsâ€™ Learning Outcomes Sukarman, Sukarman; Rahayu, Wardani; Hakim, Lukman El
JPI (Jurnal Pendidikan Indonesia) Vol 10, No 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

This study aims to analyze the development of web-based mathematics teaching materials using Moodle from the Learning Management System (LMS) with a Contextual Approach to Geometry in the eighth grade of junior high school. This research is development research by adapting the Borg and Gall development model, consisting of expert validation, small group trials, and large group trials. It uses the t-test to measure product effectiveness. Data collection techniques used questionnaires and written tests. Data analysis was carried out quantitatively using descriptive and inferential statistics. The effectiveness test results show that the t-table value is 2,988, with a significant level of 0.012 smaller than 0.025 (0.012 <0.025). Based on these results, Ho is rejected, so there is an average difference between the experimental class and the control class. Based on these results, it can be stated that the product developed in the form of an E-mathematical module with a contextual approach effectively improves student learning outcomes in geometry material.

The Positive Impact Of Virtual Class-Based On Calculus II Teaching Materials In Improving The Conceptual Understanding Of Informatics Engineering Students Anggraini, Tesi; Rahayu, Wardani; Makmuri, Makmuri
JPI (Jurnal Pendidikan Indonesia) Vol 9, No 3 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

This research aims to analyze the validity of Calculus II teaching materials based on virtual classes; the effectiveness of teaching materials that have been designed towards improving studentsâ€™ understanding of mathematical concepts. The method used in this research is ADDIE model (Analysis, Design, Development, Implementation and Evaluation). The research subjects were students of Informatics Engineering UNINDRA 4th semester who took Calculus II courses consisting 2 (two) classes, namely the experimental class consisting of 14 students and 15 students of the control class. Instruments and data collection techniques used in the form of observation, tests, and questionnaires. Data analysis used independent sample test and normalized gain score. The result showed that Calculus II teaching materials were based on virtual class was valid and effective to improve studentsâ€™ understanding of concepts so it can be concluded that the teaching materials for Calculus II based on virtual classes are valid and suitable for use in learning and are effective and practical to improve studentâ€™s conceptual understanding.

Effect of Bamboo Dance Learning Model and Early Ability Against Habit of Mind Mathematical Students Waryadi Waryadi; Kadir Kadir; Wardani Rahayu
Journal of Development Research Vol. 3 No. 2 (2019): Volume 3, Number 2, November 2019
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Nahdlatul Ulama Blitar

Based on the results of the preliminary study, Mathematical habits of mind (MHoM) mathematics students are generally still weak.Therefor, efforts are needed to overcome them. One way is to choose and apply the appropriate learning model. This study aims to determine whether the Bamboo Dance learning model and Early Mathematical Ability of Students can significantly influence the mathematics MHoM of students. This research is using the experimental method. Involving VII grade students of junior high school, with experimental classes and control classes as many as 36 student samples. The experimental class was given learning by applying the Bamboo Dance learning model, while the control class with conventional learning. The results of the study showed that the MHoM mathematics of experimental class students as a whole was better than the control class with a significance level of 0.023. Likewise, for groups of students with high and moderate initial abilities in the experimental class it is better than the group of students with high and moderate initial abilities in the control class, with a significance level of 0.011 and 0.025 respectively. Whereas for the group of students with low initial abilities there was no significant effect of the Bamboo Dance learning model on the ability of the MHoM students with a significance level of 0.775.

COMPARING THE USE OF FIVE-PACKAGE OF MATH IN THE 2011 NATIONAL EXAMINATION BETWEEN SMA AND MADRASAH ALIYAH: A CASE STUDY IN JAKARTA Wardani Rahayu
IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW Vol 1 No 1 (2014): IJER (Indonesian Journal of Educational Review)
Publisher : Program Pascasarjana Universitas Negeri Jakarta

This study aims to compare five question packages used in the 2011 National Examination, specifically for Maths for Social Studies subject between public senior high school (SMA) and Islamic senior high school (MA) in Jakarta. It employed simple random sampling as its data collection technique. The independent variables used were the category of high schools and the Five Question Packages used in the National Examination. The schools were divided into two: regular senior high school (SMA) and Islamic senior high school or Madrasah Aliyah (MA). The packages chosen to be analyzed were package number: 12, 25, 39, 46 and 54. The data was analyzed by two-factor ANOVA for its 11 Differential Item Function (DIF) and 29 non Differential Item Function (non-DIF) items. The items used for this study are the items that fit the three-parameter logistic model. This study found that no difference between the scores on both the DIF and non-DIF items in either for SMA or Ma is found. Keywords: national examination in math, five packages, DIF, SMA, MA.

CLASSICAL TEST THEORY OF INNAPROPRIATE INDEX SCOREâ€™S ACCURACY COMPARISON USING CONFUSION MATRIX ACCURACY PROPORTION IN EDUCATIONAL MEASUREMENT Wardani Rahayu; Eko Wahyudi
IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW Vol 4 No 1 (2017): Indonesian Journal of Educational Review (IJER)
Publisher : Program Pascasarjana Universitas Negeri Jakarta

The objective of this study is to determine the Donlon Fischer aacuracy method, Jacob and SHL inappropriate score using confusion matrix accuracy proportion. This research was conducted by analyzing secondary data in response to the physics national examination results throughout the West Kalimantan Province in 2012 using 1545 research samples. The sampling of the research is done by using the random sampling technique of 1545 population. The research method is experimental method which is done by comparing the proportion of accuracy obtained from confusion matrix. The hypothesis was tested by using a differences in proportions Z test. Test results showed that the SHL inappropriate index score is more accurate than Donlon Fischer and Jacob innapropriate index score. This research is expected to find an accurate method in detecting the inappropriate score used as an evaluation parameter for educational measurement.

A RASCH MODEL MEASUREMENT ANALYSIS ON SCIENCE LITERACY TEST OF INDONESIAN STUDENTS: SMART WAY TO IMPROVE THE LEARNING ASSESSMENT Rosita Uli Sihombing; Dali S. Naga; Wardani Rahayu
IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW Vol 6 No 1 (2019): Indonesian Journal of Educational Review (IJER)
Publisher : Program Pascasarjana Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (689.685 KB)

Report of a test assessment is usually carried out separately between the level of difficulty of the test items and the student’s ability. In addition, the analysis of test results is sometimes not clearly presented in a complete and in-depth explanation. This study aimed to explain the assessment process on the instrument of Science Literacy Test for Indonesian Students (SLTIS) conducted by 94 students from the 9th grade of junior high school. Those were 41 students from private schools and 53 from public schools. There were 36 test items with four possible answers for each item. In details, the findings were reported as follows: the item reliability was very good; two items were indicated to have different item functioning (DIF), and the data were fit to the model; public school students were slightly better than private school students, and there was no difference in achievement between male and female students. SLTIS instrument was suitable for diagnostic test and had a high information value on the students with moderate ability. The current study presented a smart way on how to apply the objective measurement to improve the education assessment. Keywords: science literacy, indonesian schools, Science Literacy Test for Indonesian Students (SLTIS), Rasch Measurement Model (RMM)

A RASCH MODEL MEASUREMENT ANALYSIS ON INDONESIAN SCIENCE LITERACY TEST: SMART WAY TO IMPROVE THE LEARNING ASSESSMENT Rosita Uli Sihombing; Dali S. Naga; Wardani Rahayu
IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW Vol 6 No 2 (2019): Indonesian Journal of Educational Review (IJER)
Publisher : Program Pascasarjana Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.557 KB)

Report of a test assessment is usually carried out separately between the level of difficulty of the test items and the student’s ability. In addition, the analysis of test results is sometimes not clearly presented in a complete and in-depth explanation. This study aimed to explain the assessment process on the instrument of Indonesian Science Literacy Test (ISLT) conducted by 94 students from the 9th grade of junior high school. Those were 41 students from private schools and 53 from public schools. There were 36 test items with four possible answers for each item. In details, the findings were reported as follows: the item reliability was very good; two items were indicated to have different item functioning (DIF), and the data were fit to the model; public school students were slightly better than private school students, and there was no difference in achievement between male and female students. ISLT instrument was suitable for diagnostic test and had a high information value on the students with moderate ability. The current study presented a smart way on how to apply the objective measurement to improve the education assessment. Keywords: science literacy, indonesian schools, indonesian science literacy test (islt), rasch measurement model (rmm)

TRENDS OF MATHEMATICAL LOGICAL THINKING ABILITYTHROUGH THE CRA (CONCRETE-REPRESENTATIONAL-ABSTRACT) APPROACHWITH PORTFOLIO ASSESSMENT Novaliyosi Novaliyosi; Burhanuddin Tola; Wardani Rahayu
IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW Vol 6 No 2 (2019): Indonesian Journal of Educational Review (IJER)
Publisher : Program Pascasarjana Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.808 KB)

The use of an approach in learning can provide a change in pre-service teachers mathematical logical thinking abilities, this study aims to look at the trends of mathematical logical thinking ability with treatments using Concrete-Representational-Abstract (CRA) approach with portfolio assessment. This research is a quasi-experimental with time series design. That has been acquired by new pre-service teachers. The subject of this study consists of 37 first year undergraduate students in one of the universities in Banten province, Indonesia. Pretest and posttest data were analyzed using paired sample t-test. The instruments consisted of 4 packages of mathematical logical thinking ability for pretest and posttest with each instrument consists of 8 questions on 4 indicators. The conclusion shows that there are significant differences and improvements in mathematical logical thinking ability from time to time after treatments in learning with CRA. The development of pre-service teachers mathematical logical thinking ability after CRA has trends to increase above the trendline with the equation y = 0.5085x - 1.4316. Keyword: Concrete-Representational-Abstract (CRA), logical thinking, portfolio.

Co-Authors Achmad Ridwan, Achmad Adi Rahman Adinda Cahyani Afriadi, Bambang Agustiani Putri Ahmad Zaeni Alifa Sabrina Amini, Ingriani Indah Anan Sutisna Anggraini, Tesi Asep Sutisna Awaluddin Tjalla Ayu Lestari Sardi Besse Arnawisuda Ningsi Burhanuddin Tola Candra Irawan Corry Yohana Dadan Sumardani Dali S. Naga Dali S. Naga Dali Santun Naga Darmastuti, Lintang Deni Iriyadi Dien Maya Alvionita Dion Aris Simanjuntak Dwi Rismi Ocy Dwi Rismi Ocy Eko Wahyudi Eko Widodo El Hakim, Lukman Ema Noviah Erdawaty Kamaruddin Erry Utomo Erwin Sulaeman Firmansyah Firmansyah Flavia Aurelia Hidajat, Flavia Aurelia Gartika, Euis Hajizah, Mimi Nur Hakim, Lukman El I Made Putrawan Iasha, Vina Ibnu Salman, Ibnu Intan Isma Fauziyah Irvana Arofah Iva Sarifah Jahja Umar Kacep Muslim Kadir Kadir Kadir Kadir Kartono - Ketty Diana Tundoong Ketty Diana Tundoong, Ketty Diana Kismanto, Nugro Koeshella, Ajeng Komarudin Komarudin Lesmanawati, Yunita Lisa Dwi Ningtyas Lubis, Risa Nursamsih Lukman El Hakim Makmuri Makmuri Makmuri Makmuri Makmuri Meiliasari Meiliasari Meiliasari Miiftakhul Fitri Moch. Herlan Mochamad Herlan Muhammad Dede Firman Muhammad Dwirifqi Kharisma Putra Nazira Amalia Ndoluanak, Yofran Hengki Nidia Rosita Ninik Anggraini Novaliyosi Novaliyosi Novelin Gracia Noviah, Ema Nurjannah Nurjannah Ocy Dwi Rismi Oktaviani, Maya Permana, Agus Agung Pinta Deniyanti Sampoerno Rahmirini Datau Riyadi Riyadi Rosita Uli Sihombing Rosita Uli Sihombing Siti Nur Cholifah Siti Rohmah Rohimah Soesanto, Robert Harry Sukarman Sukarman Sulaeman, Erwin Syarifah Ayu Tesi Anggraini Tika, Neni Widias Tri Cahya Mulia Uswatun Khasanah Valeria Yekti Kwasaning Gusti Vera Maya Santi Wahyu Akbari Waryadi Waryadi Winona Amanda Tiara Widodo Yuli Rahmawati Yunida, Helvy Yunika Apriyani

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