item response theory

How do I implement item response theory?

I recently received a email from a researcher that wanted to implement…

Guttman Errors: Additional Insight into Examinees

Guttman errors are a concept derived from the Guttman Scaling…
student essay rubric

What is a rubric?

What is a rubric? It's a rule for converting unstructured responses…

6 Reasons for Online Essay Marking

Why online essay marking? Essay questions and other extended…

Identifying and Dealing With Threats To Test Security

Test security is an increasingly important topic. There are several…

What is Item Banking? How can it improve my assessment?

Item banking refers to the purposeful creation of a database…
psychometrics in a fog

What is psychometrics supposed to be doing?

Today I read an article in The Industrial-Organizational Psychologist…

Item Writing Tips

With so many things to consider, it’s no wonder psychometricians…
atp conference

ASC Drives Thought Leadership at 2017 Innovations in Testing Conference

I just returned from the 2017 Innovations in Testing conference…

The Psychometrics of JRR Tolkien

Few people realize that deep in the heart of The Hobbit, Tolkien placed…