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Modeling Pacing Behavior and Test Speededness Using Latent Growth Curve Models
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Kahraman, Nilufer; Cuddy, Monica M.; Clauser, Brian E. – Applied Psychological Measurement, 2013
This research explores the usefulness of latent growth curve modeling in the study of pacing behavior and test speededness. Examinee response times from a high-stakes, computerized examination, collected before and after the examination was subjected to a timing change, were analyzed using a series of latent growth curve models to detect…
Descriptors: Pacing, Models, Reaction Time, Timed Tests
A Linear Variable-[theta] Model for Measuring Individual Differences in Response Precision
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Ferrando, Pere J. – Applied Psychological Measurement, 2011
Models for measuring individual response precision have been proposed for binary and graded responses. However, more continuous formats are quite common in personality measurement and are usually analyzed with the linear factor analysis model. This study extends the general Gaussian person-fluctuation model to the continuous-response case and…
Descriptors: Factor Analysis, Models, Individual Differences, Responses
Modeling Individual Differences in Numerical Reasoning Speed as a Random Effect of Response Time Limits
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Semmes, Robert; Davison, Mark L.; Close, Catherine – Applied Psychological Measurement, 2011
If numerical reasoning items are administered under time limits, will two dimensions be required to account for the responses, a numerical ability dimension and a speed dimension? A total of 182 college students answered 74 numerical reasoning items. Every item was taken with and without time limits by half the students. Three psychometric models…
Descriptors: Individual Differences, Logical Thinking, Timed Tests, College Students
In the Eye of the Beholder: Quantifying Individuals' Preferences and Biases Using Peer Nominations
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Camparo, James; Camparo, Lorinda B.; Wagner, Judith T. – Applied Psychological Measurement, 2010
Peer nominations are used widely in psychological and sociological research to examine intergroup dynamics, even though this assessment tool suffers from thorny methodological problems: Gender, ethnic, age, and trait compositions vary across subsamples, subjects differ in the number of nominations they make, and the issue of sampling without…
Descriptors: Group Dynamics, Intergroup Relations, Peer Relationship, Social Attitudes
Addressing Score Bias and Differential Item Functioning Due to Individual Differences in Response Style
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Bolt, Daniel M.; Johnson, Timothy R. – Applied Psychological Measurement, 2009
A multidimensional item response theory model that accounts for response style factors is presented. The model, a multidimensional extension of Bock's nominal response model, is shown to allow for the study and control of response style effects in ordered rating scale data so as to reduce bias in measurement of the intended trait. In the current…
Descriptors: Response Style (Tests), Rating Scales, Item Response Theory, Individual Differences
IRT Models for Ability-Based Guessing
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Martin, Ernesto San; del Pino, Guido; De Boeck, Paul – Applied Psychological Measurement, 2006
An ability-based guessing model is formulated and applied to several data sets regarding educational tests in language and in mathematics. The formulation of the model is such that the probability of a correct guess does not only depend on the item but also on the ability of the individual, weighted with a general discrimination parameter. By so…
Descriptors: Guessing (Tests), Probability, Mathematics Tests, Language Tests