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Direct linkHoe, Kai Yee; Subramaniam, R. – Chemistry Education Research and Practice, 2016
This study presents an analysis of alternative conceptions (ACs) on acid--base chemistry harbored by grade 9 students in Singapore. The ACs were obtained by the development and validation of a 4-tier diagnostic instrument. It is among the very few studies in the science education literature that have focused on examining results based also on…
Descriptors: Foreign Countries, Secondary School Students, Secondary School Science, Chemistry
Download full textSözen, Merve; Bolat, Mualla – Journal of Education and Learning, 2016
The purpose of this study is to develop an achievement test which includes the basic concepts about the subject of sound and its properties in middle school science lessons and which at the same time aims to reveal the alternative concepts that the students already have. During the process of the development of the test, studies in the field and…
Descriptors: Achievement Tests, Science Education, Acoustics, Test Construction
Long, Caroline; Wendt, Heike – African Journal of Research in Mathematics, Science and Technology Education, 2017
South Africa participated in TIMSS from 1995 to 2015. Over these two decades, some positive changes have been reported on the aggregated mathematics performance patterns of South African learners. This paper focuses on the achievement patterns of South Africa's high-performing Grade 9 learners (n = 3378) in comparison with similar subsamples of…
Descriptors: Foreign Countries, Comparative Analysis, Multiplication, Comparative Education
Schwichow, Martin; Christoph, Simon; Boone, William J.; Härtig, Hendrik – International Journal of Science Education, 2016
The so-called control-of-variables strategy (CVS) incorporates the important scientific reasoning skills of designing controlled experiments and interpreting experimental outcomes. As CVS is a prominent component of science standards appropriate assessment instruments are required to measure these scientific reasoning skills and to evaluate the…
Descriptors: Thinking Skills, Science Instruction, Science Experiments, Science Tests
Miller, Tess; Chahine, Saad; Childs, Ruth A. – Practical Assessment, Research & Evaluation, 2010
This study illustrates the use of differential item functioning (DIF) and differential step functioning (DSF) analyses to detect differences in item difficulty that are related to experiences of examinees, such as their teachers' instructional practices, that are relevant to the knowledge, skill, or ability the test is intended to measure. This…
Descriptors: Test Bias, Difficulty Level, Test Items, Mathematics Tests
Abedi, Jamal; Leon, Seth; Kao, Jenny C. – National Center for Research on Evaluation, Standards, and Student Testing (CRESST), 2008
This study examines the incorrect response choices, or distractors, by students with disabilities in standardized reading assessments. Differential distractor functioning (DDF) analysis differs from differential item functioning (DIF) analysis, which treats all answers alike and examines all wrong answers against the correct answer. DDF analysis…
Descriptors: Test Bias, Disabilities, Grade 9, Grade 3
O'Shea, Mary B. – ProQuest LLC, 2010
Although much is known about how students perform on standardized tests, little research exists concerning how students think and process while taking such tests. This mixed methods action research study was designed to investigate if a constructivist approach to test preparation could yield improved results for 37 English language arts freshmen…
Descriptors: Test Preparation, Test Items, Statistical Analysis, Grade 9
Peer reviewedRogers, H. Jane; Hambleton, Ronald K. – Educational and Psychological Measurement, 1989
The validity of logistic test models and computer simulation methods for generating sampling distributions of item bias statistics was evaluated under the hypothesis of no item bias. Test data from 937 ninth-grade students were used to develop 7 steps for applying computer-simulated baseline statistics in test development. (SLD)
Descriptors: Computer Simulation, Educational Research, Evaluation Methods, Grade 9
Hanson, G.R.; And Others – 1977
This report describes the development and validation of the Unisex ACT Interest Inventory (UNIACT). In contrast to other interest inventories in common use, the UNIACT contains scales on which males and females receive similar scores. In the development of the UNIACT, more than 200 potentially sex-balanced items were administered to 10,211 people,…
Descriptors: Adults, Age Differences, Career Choice, Career Counseling
