Rosa Mª Núñez Núñez, José Antonio López Pina


Aberrant patterns detection has a great usefulness in order to make tests and item banks with psychometric characteristics and validity analysis of tests and items. The most relevant and newest person-fit methods have been reviewed. All of them have been made in each one of main areas of Psychometry: Guttman’s scalogram, Classical Test Theory (CTT), Generalizability Theory (GT), Item Response Theory (IRT), Non-parametric Response Models (NPRM), Order-Restricted Latent Class Models (OR-LCM) and Covariance Structure Analysis (CSA).


person-fit methods; appropriateness measurement; aberrant pattern; Guttman’s scalogram; generalizability theory; item response theory; non-parametric response models; computerized adaptive testing

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