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Li, Wei; Konstantopoulos, Spyros – Educational and Psychological Measurement, 2017
Field experiments in education frequently assign entire groups such as schools to treatment or control conditions. These experiments incorporate sometimes a longitudinal component where for example students are followed over time to assess differences in the average rate of linear change, or rate of acceleration. In this study, we provide methods…
Descriptors: Educational Experiments, Field Studies, Models, Randomized Controlled Trials
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Huang, Francis L.; Cornell, Dewey G. – Educational and Psychological Measurement, 2016
Bullying among youth is recognized as a serious student problem, especially in middle school. The most common approach to measuring bullying is through student self-report surveys that ask questions about different types of bullying victimization. Although prior studies have shown that question-order effects may influence participant responses, no…
Descriptors: Victims of Crime, Bullying, Middle School Students, Measures (Individuals)
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Aydin, Burak; Leite, Walter L.; Algina, James – Educational and Psychological Measurement, 2016
We investigated methods of including covariates in two-level models for cluster randomized trials to increase power to detect the treatment effect. We compared multilevel models that included either an observed cluster mean or a latent cluster mean as a covariate, as well as the effect of including Level 1 deviation scores in the model. A Monte…
Descriptors: Error of Measurement, Predictor Variables, Randomized Controlled Trials, Experimental Groups
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Kim, Eun Sook; Willson, Victor L. – Educational and Psychological Measurement, 2010
This article presents a method to evaluate pretest effects on posttest scores in the absence of an un-pretested control group using published results of pretesting effects due to Willson and Putnam. Confidence intervals around the expected theoretical gain due to pretesting are computed, and observed gains or differential gains are compared with…
Descriptors: Control Groups, Intervals, Educational Research, Educational Psychology
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Ziegler, Matthias; Buehner, Markus – Educational and Psychological Measurement, 2009
The impact of socially desirable responding or faking on noncognitive assessments remains an issue of strong debate. One of the main reasons for the controversy is the lack of a statistical method to model such response sets. This article introduces a new way to model faking based on the assumption that faking occurs due to an interaction between…
Descriptors: Response Style (Tests), Models, Control Groups, Structural Equation Models
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Lix, Lisa M.; Deering, Kathleen N.; Fouladi, Rachel T.; Manivong, Phongsack – Educational and Psychological Measurement, 2009
This study considers the problem of testing the difference between treatment and control groups on m [greater than or equal to] 2 measures when it is assumed a priori that the treatment group will perform better than the control group on all measures. Two procedures are investigated that do not rest on the assumptions of covariance homogeneity or…
Descriptors: Control Groups, Experimental Groups, Outcomes of Treatment, Comparative Analysis
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Sun, Jun; Willson, Victor L. – Educational and Psychological Measurement, 2008
This article proposes a multilevel modeling approach to study the general and specific attitudes formed in human learning behavior. Based on the premises of activity theory, it conceptualizes the unit of analysis for attitude measurement as a scalable and evolving activity system rather than a single action. Measurement issues related to this…
Descriptors: Structural Equation Models, Psychometrics, Multitrait Multimethod Techniques, Attitude Measures
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Sparfeldt, Jorn R.; Schilling, Susanne R.; Rost, Detlef H.; Thiel, Alexandra – Educational and Psychological Measurement, 2006
The notion of item context effects implies that psychometric properties of an item or scale are altered by the presentation format, for example, blocked versus randomized. In an experimental study with high school students, the experimental group (n = 407) answered a four-dimensional academic self-concept questionnaire, in which the items were…
Descriptors: Factor Structure, Self Concept, Questionnaires, Reliability
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Smith, Jr., Everett V.; Kulikowich, Jonna M. – Educational and Psychological Measurement, 2004
This study describes the use of generalizability theory (GT) and many-facet Rasch measurement (MFRM) to evaluate psychometric properties of responses obtained from an assessment designed to measure complex problem-solving skills. The assessment revolved around the school activity of kickball. The task required of each student was to decide on a…
Descriptors: Grade 4, Urban Youth, Psychometrics, Measurement Techniques
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Levy, Kenneth J. – Educational and Psychological Measurement, 1975
The Dunnett procedure for comparing several treatment means with a control is applied to the problem of comparing several treatment variances with the variance of a control. Appropriate critical values are specified and an example is provided. (Author)
Descriptors: Analysis of Variance, Comparative Analysis, Control Groups, Experimental Groups
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Nthangeni, Mbulaheni; Algina, James – Educational and Psychological Measurement, 2001
Examined Type I error rates and power for four tests for treatment control studies in which a larger treatment mean may be accompanied by a larger treatment variance and examined these aspects of the independent samples "t" test and the Welch test. Evaluated each test and suggested conditions for the use of each approach. (SLD)
Descriptors: Control Groups, Power (Statistics), Research Design, Sampling
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Williams, Richard H. – Educational and Psychological Measurement, 1992
A QuickBASIC program is described that can be used to conduct Dunnett-like comparisons on a set of independent proportions. The statistical method used, based on Levy's statistical method (1975), is an extension of the well-known Dunnett test for multiple comparisons on means. (Author/SLD)
Descriptors: Comparative Analysis, Computer Software, Computer Software Reviews, Control Groups
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Neuringer, Charles – Educational and Psychological Measurement, 1979
CUTOFF is a program to identify the most efficient classification prediction cutting score. It ranks the scores of a criterion and a comparison group and organizes them into cumulative frequency tables allowing for immediate display of an index of correct identifications associated with each score. (Author/JKS)
Descriptors: Classification, Computer Programs, Control Groups, Cutting Scores