Showing 1 - 2 of 2 Research Library Publications

One Size Doesn’t Fit All: Using Factor Analysis to Gather Validity Evidence When Using Surveys in Your Research

Posted: | E. Knetka, C. Runyon, S. Eddy

CBE—Life Sciences Education Vol. 18, No. 1

 

This article briefly reviews the aspects of validity that researchers should consider when using surveys. It then focuses on factor analysis, a statistical method that can be used to collect an important type of validity evidence.

Category:Assessment-Oriented Research, Reliability/Validity

Diagnosing Diagnostic Models: From Von Neumann’s Elephant to Model Equivalencies and Network Psychometrics

Posted: | M. von Davier

Measurement: Interdisciplinary Research and Perspectives, 16:1, 59-70

 

This article critically reviews how diagnostic models have been conceptualized and how they compare to other approaches used in educational measurement. In particular, certain assumptions that have been taken for granted and used as defining characteristics of diagnostic models are reviewed and it is questioned whether these assumptions are the reason why these models have not had the success in operational analyses and large-scale applications, contrary to what many have hoped.

Category:Assessment-Oriented Research, General Measurement