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Download full textBehrens, John T.; Mislevy, Robert J.; DiCerbo, Kristen E.; Levy, Roy – National Center for Research on Evaluation, Standards, and Student Testing (CRESST), 2010
The world in which learning and assessment must take place is rapidly changing. The digital revolution has created a vast space of interconnected information, communication, and interaction. Functioning effectively in this environment requires so-called 21st century skills such as technological fluency, complex problem solving, and the ability to…
Descriptors: Evidence, Student Evaluation, Educational Assessment, Influence of Technology
Implementation of the EM Algorithm in the Estimation of Item Parameters: The BILOG Computer Program.
Mislevy, Robert J.; Bock, R. Darrell – 1982
This paper reviews the basic elements of the EM approach to estimating item parameters and illustrates its use with one simulated and one real data set. In order to illustrate the use of the BILOG computer program, runs for 1-, 2-, and 3-parameter models are presented for the two sets of data. First is a set of responses from 1,000 persons to five…
Descriptors: College Entrance Examinations, Computer Oriented Programs, Computer Simulation, Computer Software
