Identification of Items that Show Nonuniform DIF

A Comparison of Logistic Regression, CSIBTEST, and Combined Decision Rule for Detection of nonuniform DIF items using Real Data

DRD4 Long Allele Carriers Show Heightened Attention to High-priority Items Relative to Low-priority Items

Humans with seven or more repeats in exon III of the DRD4 gene (long DRD4 carriers) sometimes demonstrate impaired attention, as seen in attention-deficit hyperactivity disorder, and at other times demonstrate heightened attention, as seen in addictive behavior. Although the clinical effects of DRD4 are the focus of much work, this gene may not necessarily serve as a "risk" gene for attentional...

Identification and characterization of the dif Site from Bacillus subtilis.

Bacteria with circular chromosomes have evolved systems that ensure multimeric chromosomes, formed by homologous recombination between sister chromosomes during DNA replication, are resolved to monomers prior to cell division. The chromosome dimer resolution process in Escherichia coli is mediated by two tyrosine family site-specific recombinases, XerC and XerD, and requires septal localization...

Computers that Show Recognition of Patients' Symptoms

The goal of automated symptom management has often been narrowly defined as collection and reporting of data. Yet, an automated system can do more. These s ystems can mimic h uman reassurance f or patients th at their symptoms have been recognized. Patient engagement has long been recognized as central in symptom management. An electronic system was b uilt to co llect the Treatment Related Symp...

Differential item functioning analysis with ordinal logistic regression techniques. DIFdetect and difwithpar.

INTRODUCTION We present an ordinal logistic regression model for identification of items with differential item functioning (DIF) and apply this model to a Mini-Mental State Examination (MMSE) dataset. We employ item response theory ability estimation in our models. Three nested ordinal logistic regression models are applied to each item. Model testing begins with examination of the statistical...