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Download full textZimmerman, Donald W. – Psicologica: International Journal of Methodology and Experimental Psychology, 2011
This study investigated how population parameters representing heterogeneity of variance, skewness, kurtosis, bimodality, and outlier-proneness, drawn from normal and eleven non-normal distributions, also characterized the ranks corresponding to independent samples of scores. When the parameters of population distributions from which samples were…
Descriptors: Statistical Analysis, Nonparametric Statistics, Scores, Error Patterns
Peer reviewedMeijer, Rob R. – Applied Psychological Measurement, 1994
Through simulation, the power of the U3 statistic was compared with the power of one of the simplest person-fit statistics, the sum of the number of Guttman errors. In most cases, a weighted version of the latter statistic performed as well as the U3 statistic. (SLD)
Descriptors: Error Patterns, Item Response Theory, Nonparametric Statistics, Power (Statistics)
