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Full-Text Articles in Statistics and Probability

Meta-Analysis Of Type I Error Rates For Detecting Differential Item Functioning With Logistic Regression And Mantel-Haenszel In Monte Carlo Studies, Eva Van De Water Ph. D. Jul 2014

Meta-Analysis Of Type I Error Rates For Detecting Differential Item Functioning With Logistic Regression And Mantel-Haenszel In Monte Carlo Studies, Eva Van De Water Ph. D.

Eva Van De Water

Differential item functioning (DIF) occurs when individuals from different groups who have equal levels of a latent trait fail to earn commensurate scores on a testing instrument. Type I error occurs when DIF-detection methods result in unbiased items being excluded from the test while a Type II error occurs when biased items remain on the test after DIF-detection methods have been employed. Both errors create potential issues of injustice amongst examinees and can result in costly and protracted legal action. The purpose of this research was to evaluate two methods for detecting DIF: logistic regression (LR) and Mantel-Haenszel (MH).

To …


Reflecting On The Experience Sampling Method In The Qualitative Research Context: Focus On Knowledge Production And Power During The Data-Collection Process Dec 2007

Reflecting On The Experience Sampling Method In The Qualitative Research Context: Focus On Knowledge Production And Power During The Data-Collection Process

Fredline MCormack-Hale

In this conceptual article, we discuss how the conventional experience sampling method (ESM) was applied to a qualitative research project to increase participants’ agency and empowerment during data collection. Specifically we outline the conceptual and methodological tensions, complexities, and power shifts that emerged during our data-collection process. Research examples illustrate the location of knowers (researchers and study participants), the knowers’ relationship to various tangible objects of research (e.g., protocols, digital devices), and how these notions shape power and data that is constructed within a research study. We conclude that it is important to analyze and reflect on how researchers conduct …