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Advanced Methods and Analysis for the Learning and Social Sciences

Advanced Methods and Analysis for the Learning and Social Sciences. PSY505 Spring term, 2012 January 23, 2012. Today’s Class. Item Response Theory. What is the key goal of IRT?. What is the key goal of IRT?. Measuring how much of some latent trait a person has How intelligent is Bob?

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Item Parameter Estimation: Does WinBUGS Do Better Than BILOG-MG?

Item Parameter Estimation: Does WinBUGS Do Better Than BILOG-MG?. Bayesian Statistics, Fall 2009 Chunyan Liu &amp; James Gambrell. Introduction. 3 Parameter IRT Model Assigns each item a logistic function with a variable lower asymptote. Purpose.

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547 views • 27 slides

IRT Model Misspecification and Metric Consequences

IRT Model Misspecification and Metric Consequences. Sora Lee Sien Deng Daniel Bolt Dept of Educational Psychology University of Wisconsin, Madison. Overview .

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