Computerized Testing

How Beyoncé Sold Me on Computerized Adaptive Testing

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Desperation is seldom fun to see. Some years ago, having recently…
test delivery

How do I develop a Test Security Plan?

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Since the first tests were developed 2000 years ago for entry…

The Standard Error of Measurement

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The standard error of measurement is one of the core concepts…

The Standard Error of the Mean

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The standard error of the mean is one of the three main standard…

The Story of the Three Standard Errors

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One of my graduate school mentors once said in class that there…

2017 Psychometrics Seminar and CIIE Conference

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One of the best aspects of my position is the opportunity to…
validity threats psychometrics

What validity threats are relevant to psychometric forensics?

Validity, in its modern conceptualization, refers to evidence…

Assessment Systems Named INC 5000 Fasted Growing Companies

Assessment Systems Ranks No. 807 on the 2017 Inc. 5000 America’s…
item difficulty

What is classical item difficulty (P value)?

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One of the core concepts in psychometrics is item difficulty.  This…
psychometric forensics, conference on test security, data forensics, test fraud

Examinee Collusion: Primary vs Secondary

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It's October 30, 2017, and collusion is all over the news today...…