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Keep on reading for easy-to-digest articles on psychometric topics, industry news, and guest posts from experts.

AI Remote Proctoring
validity threats
Psychometrics

Responses in Common (RIC)

This collusion detection (test cheating) index simply calculates the number of responses in common between a given pair of examinees.  For example, both answered ‘B’

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Wollack Omega
Psychometrics

Wollack 1997 Omega Collusion Index

Wollack (1997) adapted the standardized collusion index of Frary, Tidemann, and Watts (1977) g2 to item response theory (IRT) and produced the Wollack Omega (ω)

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linear on the fly testing
Psychometrics

Response Time Effort

Wise and Kong (2005) defined an index to flag examinees not putting forth minimal effort, based on their response time.  It is called the response

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analysis data
Psychometrics

What is a Psychometrician?

A psychometrician is someone who practices psychometrics – the Science of Assessment.  That is, they study the process of assessment development and validation itself, regardless

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african student exam computer
Psychometrics

What is online proctoring?

Online proctoring has been around for over a decade. But given the recent outbreak of COVID-19, educational and workforce/certification institutions are scrambling to change their

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