Posts on psychometrics: The Science of Assessment

r psychometrics data science

Is R for psychometrics finally becoming mainstream?

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If you are involved with any sort of data science, which psychometrics…

Flagging invalid scores with Time-Score analysis

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Psychometric forensics is a surprisingly deep and complex field. …
teaching to the test

Is teaching to the test a bad thing?

One of the most cliche phrases associated with assessment is…

What is the two parameter IRT model (2PL)?

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Item response theory is the predominant psychometric paradigm…
Juggling-statistics

What is the three parameter IRT model (3PL)?

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Item response theory (IRT) is an extremely powerful psychometric…

What is the classical item facility statistic in psychometrics?

Classical test theory is a century-old paradigm for psychometrics…

How can you implement an Angoff cutscore on a test scored with item response theory?

The modified-Angoff method is arguably the most common method…

What is linear on the fly testing?

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Linear on the fly testing (LOFT) is an approach to delivering…
Accreditation