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Phillips, S. E.; Anderson, A. E. – 1983
The LOGTRUE program can be used to obtain a scale of equated raw scores for two tests with parameter estimates on a common item response theory scale. The program derives its name from the method of logistic true score equating described by Lord (1980). The method can be applied to two tests with overlapping items administered to different groups…
Descriptors: Computer Programs, Equated Scores, Group Testing, Latent Trait Theory
