Academia.edu no longer supports Internet Explorer.
To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.
This study compared the effectiveness of Conventional Testing (CT), Liberal Marking (LM) and Confidence Sharing (CS) of scoring objective test in Chemistry. It examined which of the three scoring methods is more effective, reliable and valid. These were with a view to enhancing the reliability and validity of chemistry objective test for standard assessment. The population for the study comprised of senior secondary school three (SSSIII) students in Osun State. The sample consists of 150 SSSIII chemistry students in their intact classes from three randomly selected schools and in three randomly selected local government areas of the state. The classes were randomly assigned to the three scoring methods. The instruments used for this study were Chemistry Multiple-choice Test. The 40-item Chemistry multiple-choice test was administered on the students in each school. Three scoring methods used to score the test items. Data collected were analysed using Kuder-Richardson (kp-21) formula and fisher Z-test. Result obtained revealed that significant different existed in the reliability coefficient of CT, LM and CS (fc=1.444195; p<0.05) df (2,147). There is no significant difference existed among CT, LM and CS in the validity of the test score. CS performed better than LM at observed mean different of 2.2.0000 P<0.05. While LM is better than CT at mean observed different of 0.78451. It was therefore, concluded that CS could be used to authentically assess Chemistry studentss performance and able to identify students with genuine learning difficulties
2021 •
The teacher-made chemistry test must have a good quality, due to the decision taken from the tests has an impact on the students. Therefore, the purpose of the research is to explore the quality of teacher-made chemistry tests such as item fit and person fit, items difficulty, and test reliability. The sample consisted of 356 senior students from senior high schools in Yogyakarta that were selected by cluster random sampling technique. The research used the teacher-made chemistry test consisted of 40 multiple choice items which were collected using documentation technique. Data were analyzed with Rasch Model using Winsteps 3.73 version. The result showed that all items in the teacher-made chemical test were proven to have good quality (fit model, good item difficulty, and good test reliability). Moreover, 18 students were identified as misfit persons. From the findings, the test can be used to assess the students’ learning outcomes, especially for the try-out of the final exam in se...
Journal of Educational Chemistry (3 (1), 2021, 11-22)
Chemistry Learning Outcomes Assessment: How is The Quality of The Tests Made by The Teacher2021 •
The teacher-made chemistry test must have a good quality, due to the decision taken from the tests has an impact on the students. Therefore, the purpose of the research is to explore the quality of teacher-made chemistry tests such as item fit and person fit, item difficulty, and test reliability. The sample consisted of 356 senior students from senior high schools in Yogyakarta that were selected by cluster random sampling technique. The research used the teacher-made chemistry test consisted of 40 multiple choice items which were collected using documentation technique. Data were analyzed with Rasch Model using Winsteps 3.73 version. The result showed that all items in the teacher-made chemical test were proven to have good quality (fit model, good item difficulty, and good test reliability). Moreover, 18 students were identified as misfit persons. From the findings, the test can be used to assess the students' learning outcomes, especially for the try-out of the final exam in senior high school. Besides, the students identified as person misfits should be further examined and receive teachers' guidance.
This study adopted the expost facto design in which the results of some Nigeria students‟ practical knowledge of Chemistry and their tests of theoretical knowledge of Chemistry were used to predict their performance in MOCK-SSCE Chemistry. The Senior School Certificate Examination (SSCE) is a terminal examination while the internal or State qualifying examination set after the pattern of SSCE is called MOCK-SSCE. Out of 33 schools in Ogbadibo LGA of Benue State Nigeria, only 15 schools met the requirements for selection as a science secondary school. Eight of these schools with a science student population of 128 were randomly selected and used as sample for this study. The instruments used for this study were the students‟ alternative to test of practical knowledge of Chemistry (SATPKC) and the students‟ tests of theoretical knowledge of Chemistry (STTKC). These instruments developed by the researchers had reliabilities of 0.94 using Kuder Richardson (K-R21) for SATPKC and .89 for STTKC. Using multiple regression analysis the result shows that students‟ performance in a test of theoretical knowledge in Chemistry does not significantly predict their performance in MOCK-SSCE Chemistry theory examination. SATPKC could not significantly predict MOCK-SSCE mean practical scores. The over all relationship between SATPKC, MOCK-SSCE practical and MOCK-SSCE theory was not significant (F2, 127 =1.644, p> .05). STTKC could not significantly predict mean MOCK-SSCE practical examination scores. Similarly, the overall relationship between STTKC, MOCK-SSCE practical and MOCK-SSCE theory mean scores was not significant (F2, 127 = .177, p> .05). It was recommended that Principals of schools should ensure that science students carry out their lesson on practical weekly and at the same time relating it to theory as it will go a long way to enhance their performance during practical test. Similarly, school Principals and science teachers should ensure that theoretical
ACS Symposium Series
Assessing the Assessments: Development of a Tool To Evaluate Assessment Items in Chemistry According to Learning Outcomes2016 •
The objective of this study was to develop a two-tier test about the subject of " Separation of Matter " in 9 th grade chemistry curriculum and to argue the efficiency of this test on students' achievement. First, we interviewed 21 students to develop multiple-choice items. Secondly, 24 students were asked to select the most appropriate answer to each question and then they gave explanations for their choices to develop a two-tier test. At the third phase of this study, a two-tier test including 15 questions was developed and applied to141 students for collecting data. The results of the study showed that the two-tier test was effective on determining the students' misconceptions and also it might be used as an alternative to the traditional multiple choice test for of assessment and evaluation of alternative students' achievement.
2021 •
The topic of the research is ‘predictive validity of S.S III chemistry MOCK Examination in relation to WAEC examination of some selected secondary schools in Dambam Local Government of Bauchi State, Nigeria. The aim of the research is to test the student performance in both WAEC and MOCK Examinations for 2012 and 2013 session. An observational checklist was used to collect the data from the study area and correlation coefficient was used to determine the difference between the MOCK and WAEC and t-test was used to test the significance of the hypothesis raised. The findings of the research indicated that there was a positive relationship between students’ performance in MOCK and WAEC chemistry for both 2012 and 2013 except in government day secondary school Dambam for 2012 which was found to be significant. Based on the findings, appropriate recommendations were made.
2019 •
The aim of study is that the instrument preparation for assesment of chemistry learning. The process starts from the basic competence in determining the indicators that will be assessed, through the development of the instrument lattice, which will be exposed in detail about the items of the instrument to be prepared. The role of ontology examines the nature of the reality of the object of knowledge, axiology as a value theory related to the usefulness of knowledge. The phenomenon is that there are still many teachers who have not followed standard procedures in the preparation and development of learning instruments, the teacher does not make a grid as a guide for making questions. As a result, students are lazy to learn because the learning outcomes obtained of XI Science Class students at SMA Negeri 5 in Takalar City are not in accordance with the ability level of students. This type of research is the development or Research and Development (R&D) using the Analysis Design Development Implementation and Evaluation (ADDIE) model, to develop and design an instrument for evaluating the learning outcomes of class XI science students in chemistry state senior high school (SMA) 5 Takalar City with a focus on cognitive, affective, and psychomotor dimensions that produce valid and reliable instruments.
Online Journal by League of Educational Researchers International (LERI)
DEVELOPMENT OF A PSYCHO-PRODUCTIVE SKILLS TEST FOR COLLEGES OF EDUCATION CHEMISTRY STUDENTS IN NASARAWA STATE2020 •
The paper is on development of a psycho-productive skills test for Colleges of Education chemistry students in Nasarawa State. The research employed the instrumentation research design as appropriate for this study. The population of the study consisted of all students offering chemistry in Colleges of Education in Nasarawa State. There are a total of 9,079 students in Nasarawa State for the 2020/2021 academic session. The sample for the investigation comprised 180 students selected through random sampling technique from two Colleges of Education in Nasarawa State. The instrument that was used for data collection was the Psycho-productive Test Instrument (PTI) developed by the researcher and capable of assessing psycho-productive skills among chemistry students. A logical validity index of 0.67 for the instrument was obtained. The score means and standard deviations for the different groups of students were determined using the computer analysis program (PASW). It was found that students" scores in procedural skills are positively and highly correlated to their scores in manipulative skills. The paper recommended that examining bodies in Nigeria such as the JAMB, WAEC, NECO and NABTEB should integrate this innovative assessment procedure rather than relying only on procedures that do not adequately assess psycho-productive skills among chemistry students in secondary schools. The use of the instrument should be enforced by the Ministry of Education as a baseline, diagnostic, continuous or formative assessment tool for chemistry teachers in all secondary schools in Nasarawa State since the instrument is valid, reliable and usable irrespective of school type, school location and gender of the chemistry students.
American Journal of Obstetrics and Gynecology
Does unexplained second-trimester (15 to 20 weeks' gestation) maternal serum α-fetoprotein elevation presage adverse perinatal outcome?1991 •
Pensar en Movimiento: Revista de Ciencias del Ejercicio y la Salud
Evaluación del aprendizaje en Educación Física EscolarThe Journal of Immunology
B Cells as a Therapeutic Target for IFN- in Relapsing-Remitting Multiple Sclerosis2011 •
Geophysical Journal International
Coincident magnetotelluric, P -wave and S -wave images of the deep continental crust beneath the Weardale granite, NE England: seismic layering, low conductance and implications against the fluids paradigm1998 •
Journal of Applied Meteorology and Climatology
Freezing Drizzle Detection with WSR-88D Radars2009 •
Addictive Behaviors Reports
Testing a frequency of exposure hypothesis in attentional bias for alcohol-related stimuli amongst social drinkers2015 •
2015 •
Field Crops Research
Predicting yield reduction in improved barley ( Hordeum vulgare L.) varieties and landraces under salinity using selected tolerance traits2017 •
2012 •
Archives of Pediatrics & Adolescent Medicine
Association of Autistic Spectrum Disorder and the Measles, Mumps, and Rubella Vaccine2003 •
Ciencia e Ingeniería Neogranadina
Cálculo de la dimensión fractal de la falla geológica del sur occidente de Colombia2007 •
Selecciones Matemáticas
Measuring the Complexity in the Peruvian Financial Market2015 •
2006 •
Humanism : Jurnal Pengabdian Masyarakat
Pemberdayaan Perempuan di PKBM Bungaeja Kecamatan Sampolawa Kabupaten Buton Selatan Melaui Program Keaksaraan Usaha Mandiri2020 •
Bulletin of Environmental Contamination and Toxicology
Responses of the hepatic enzymes of a teleost fish totrans-stilbene oxide treatment1981 •
2012 •
Remote Sensing
The Potential of Moonlight Remote Sensing: A Systematic Assessment with Multi-Source Nightlight Remote Sensing Data2021 •
Computers in Physics
Simulation of Diffusion-Controlled Chemical Reactions1992 •