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Bazaldua, Diego A. Luna; Lee, Young-Sun; Keller, Bryan; Fellers, Lauren – Asia Pacific Education Review, 2017
The performance of various classical test theory (CTT) item discrimination estimators has been compared in the literature using both empirical and simulated data, resulting in mixed results regarding the preference of some discrimination estimators over others. This study analyzes the performance of various item discrimination estimators in CTT:…
Descriptors: Test Items, Monte Carlo Methods, Item Response Theory, Correlation
Lee, Shinhye; Winke, Paula – Language Testing, 2018
We investigated how young language learners process their responses on and perceive a computer-mediated, timed speaking test. Twenty 8-, 9-, and 10-year-old non-native English-speaking children (NNSs) and eight same-aged, native English-speaking children (NSs) completed seven computerized sample TOEFL® Primary™ speaking test tasks. We investigated…
Descriptors: Elementary School Students, Second Language Learning, Responses, Computer Assisted Testing
Kaplan, David; Chen, Jianshen – Psychometrika, 2012
A two-step Bayesian propensity score approach is introduced that incorporates prior information in the propensity score equation and outcome equation without the problems associated with simultaneous Bayesian propensity score approaches. The corresponding variance estimators are also provided. The two-step Bayesian propensity score is provided for…
Descriptors: Intervals, Bayesian Statistics, Scores, Prior Learning
Rapp, John T.; Carroll, Regina A.; Stangeland, Lindsay; Swanson, Greg; Higgins, William J. – Behavior Modification, 2011
The authors evaluated the extent to which interobserver agreement (IOA) scores, using the block-by-block method for events scored with continuous duration recording (CDR), were higher when the data from the same sessions were converted to discontinuous methods. Sessions with IOA scores of 89% or less with CDR were rescored using 10-s partial…
Descriptors: Intervals, Sampling, Comparative Analysis, Measures (Individuals)
Okutsu, Masataka; DeLaurentis, Daniel; Brophy, Sean; Lambert, Jason – Computers & Education, 2013
To test the concept of multiuser 3D virtual environments as media to teach semester-long courses, we developed a software prototype called Aeroquest. An aerospace design course--offered to 135 second-year students for university credits in Fall 2009--was divided into two groups: the real-world group attending lectures, physically, in a campus hall…
Descriptors: Engineering, Engineering Education, Aerospace Education, Design
Ashby, Jeffrey S.; Noble, Christina L.; Gnilka, Philip B. – Journal of College Counseling, 2012
This study examined the relationship between adaptive and maladaptive perfectionism, stress, depression, and satisfaction with life in a sample of undergraduate women. The authors found that maladaptive perfectionists had lower satisfaction with life and higher stress and depression scores compared with adaptive perfectionists. Results also…
Descriptors: College Students, Life Satisfaction, Depression (Psychology), Anxiety
Taub, Gordon E.; McGrew, Kevin S.; Keith, Timothy Z. – Journal of Research in Childhood Education, 2015
This article examines the effect of improvements in timing/rhythmicity on mathematics achievement. A total of 86 participants attending 1st through 4th grades completed pre- and posttest measures of mathematics achievement from the Woodcock-Johnson III Tests of Achievement. Students in the experimental group participated in a 4-week intervention…
Descriptors: Elementary School Students, Elementary School Mathematics, Mathematics Achievement, Intervals
Somers, Marie-Andrée; Zhu, Pei; Jacob, Robin; Bloom, Howard – MDRC, 2013
In this paper, we examine the validity and precision of two nonexperimental study designs (NXDs) that can be used in educational evaluation: the comparative interrupted time series (CITS) design and the difference-in-difference (DD) design. In a CITS design, program impacts are evaluated by looking at whether the treatment group deviates from its…
Descriptors: Research Design, Educational Assessment, Time, Intervals
Westrick, Paul A. – ACT, Inc., 2015
This study examined the effects of differential grading in science, technology, engineering, and mathematics (STEM) and non-STEM fields over eight consecutive semesters. Using data from 62,122 students at 26 four-year postsecondary institutions, students were subdivided by institutional admission selectivity levels, gender, and student major…
Descriptors: Grading, Student Evaluation, STEM Education, Meta Analysis
Woltz, Dan J.; Gardner, Michael K.; Kircher, John C.; Burrow-Sanchez, Jason J. – Psychological Assessment, 2012
Two experiments investigated the relationship between subjective interpretation of frequency terms and corresponding objective values. Evidence supported the existence of a nonlinear relationship that is well described by a logarithmic function. The general form of this relationship was consistent across different methods of eliciting subjective…
Descriptors: Evidence, Rating Scales, Acoustics, Scoring
Dunst, Carl J.; Hamby, Deborah W. – Journal of Intellectual & Developmental Disability, 2012
This paper includes a nontechnical description of methods for calculating effect sizes in intellectual and developmental disability studies. Different hypothetical studies are used to illustrate how null hypothesis significance testing (NHST) and effect size findings can result in quite different outcomes and therefore conflicting results. Whereas…
Descriptors: Intervals, Developmental Disabilities, Statistical Significance, Effect Size
Cendan, Juan C.; Johnson, Teresa R. – Advances in Physiology Education, 2011
The Association of American Medical Colleges has encouraged educators to investigate proper linkage of simulation experiences with medical curricula. The authors aimed to determine if student knowledge and satisfaction differ between participation in web-based and manikin simulations for learning shock physiology and treatment and to determine if…
Descriptors: Medical Education, Medical Students, Physiology, Internet
Miller, Kim S.; Lin, Carol Y.; Poulsen, Melissa N.; Fasula, Amy; Wyckoff, Sarah C.; Forehand, Rex; Long, Nicholas; Armistead, Lisa – AIDS Education and Prevention, 2011
We examine efficacy of the Parents Matter! Program (PMP), a program to teach African-American parents of preadolescents sexual communication and HIV-prevention skills, through a multicenter, randomized control trial. A total of 1115 parent-child participants were randomized to one of three intervention arms (enhanced, brief, control). Percentages…
Descriptors: Acquired Immunodeficiency Syndrome (AIDS), Learning Readiness, Intervals, Sexually Transmitted Diseases
Bird, Steve – Applied Psycholinguistics, 2010
A longitudinal study compared the effects of distributed and massed practice schedules on the learning of second language English syntax. Participants were taught distinctions in the tense and aspect systems of English at short and long practice intervals. They were then tested at short and long intervals. The results showed that distributed…
Descriptors: Intervals, Second Language Learning, Syntax, Longitudinal Studies
Levy, Deborah L.; Bowman, Elizabeth A.; Abel, Larry; Krastoshevsky, Olga; Krause, Verena; Mendell, Nancy R. – Brain and Cognition, 2008
The "co-familiality" criterion for an endophenotype has two requirements: (1) clinically unaffected relatives as a group should show both a shift in mean performance and an increase in variance compared with controls; (2) performance scores should be heritable. Performance on the antisaccade task is one of several candidate endophenotypes for…
Descriptors: Intervals, Schizophrenia, Patients, Effect Size
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