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Direct linkLee, Jihyun; Corter, James E. – Applied Psychological Measurement, 2011
Diagnosis of misconceptions or "bugs" in procedural skills is difficult because of their unstable nature. This study addresses this problem by proposing and evaluating a probability-based approach to the diagnosis of bugs in children's multicolumn subtraction performance using Bayesian networks. This approach assumes a causal network relating…
Descriptors: Misconceptions, Probability, Children, Subtraction
Wise, Steven L.; DeMars, Christine E. – Applied Psychological Measurement, 2009
Attali (2005) recently demonstrated that Cronbach's coefficient [alpha] estimate of reliability for number-right multiple-choice tests will tend to be deflated by speededness, rather than inflated as is commonly believed and taught. Although the methods, findings, and conclusions of Attali (2005) are correct, his article may inadvertently invite a…
Descriptors: Guessing (Tests), Multiple Choice Tests, Test Reliability, Computation
