(well, it always is…)
Keep on reading for easy-to-digest articles on psychometric topics, industry news, and guest posts from experts.
This index evaluates error similarity analysis (ESA), namely estimating the probability that a given pair of examinees would have the same exact errors in common
The Frary, Tideman, and Watts (1977) g2 index is a collusion (cheating) detection index, which is a standardization that evaluates a number of common responses
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)
Wesolowsky’s (2000) index is a collusion detection index, designed to look for exam cheating by finding similar response vectors amongst examinees. It is in the
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
The Holland K index and variants are probability-based indices for psychometric forensics, like the Bellezza & Bellezza indices, but make use of conditional information in
FastTest has been ASC’s flagship platform for the past 11 years, securely delivering millions of online exams powered with computerized adaptive testing and item response
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
An item distractor, also known as a foil or a trap, is an incorrect option for a selected-response item on an assessment. What makes a
What is an item review? It is the process of performing quality control on items before they are ever delivered to examinees. This is an
Technology-enhanced items are assessment items (questions) that utilize technology to improve the interaction of the item, over and above what is possible with paper. Tech-enhanced
Automated item generation (AIG) is a paradigm for developing assessment items (test questions), utilizing principles of artificial intelligence and automation. As the name suggests, it
If you have worked in the field of assessment and psychometrics, you have undoubtedly encountered the word “standard.” While a relatively simple word, it has
The generalized partial credit model (GPCM, Muraki 1992) is a category in a group of families in item response theory. It is designed to work
Recently, I was asked about scaled scoring and if the transformation must be based on the normal curve. This is an important question, especially since
