ASC’s Blog: Resources on Assessment, Psychometrics, & Edtech
ASC continually posts new resources and articles on our blog, covering industry news, scholarly conferences, and discussions of important psychometric concepts. See the most recent articles in the blog below.
Factor Analysis: Evaluating Dimensionality in Assessment
Factor analysis is a statistical technique widely used in research to understand and evaluate the underlying structure of assessment data….
Setting a Cutscore to Item Response Theory
Setting a cutscore on a test scored with item response theory (IRT) requires some psychometric knowledge. This post will get…
What are technology enhanced items?
Technology-enhanced items are assessment items (questions) that utilize technology to improve the interaction of a test question in digital assessment,…
Modified-Angoff Method Study
A modified-Angoff method study is one of the most common ways to set a defensible cutscore on an exam. It…
How Students Cheat in Online Exams and How to Catch Them
Cheating in exams has always been a major concern, even before the major shift to online proctored exams. According to a study done in 2007, 60.8% of college students involved admitted to cheating while a whooping 95% not getting caught! Heartbreaking! Right? Another article also revealed that even renowned institutions such as Harvard and Yale turn out to be fragile when it came to academic integrity. This is just but a tip of the iceberg
What is Item Response Theory (IRT)?
Item response theory (IRT) is a family of machine learning models in the field of psychometrics, which are used to…
Criterion-related validity
Criterion-related validity is evidence that test scores are related to other data which we expect them to be. This is…
What is Digital Assessment, aka e-Assessment?
Digital assessment (DA) aka e-Assessment or electronic assessment is the delivery of assessments, tests, surveys, and other measures via digital…
Navigating Leadership Assessments: A Science-Backed Approach
Leadership assessments are more than just tools; they are crucial to identifying and developing effective organizational leadership. Plenty of options…
Why PARCC EBSR Items Provide Bad Data
The Partnership for Assessment of Readiness for College and Careers (PARCC) is a consortium of US States working together to…
What is Test Scaling?
Scaling is a psychometric term regarding the establishment of a score metric for a test, and it often has two…
Certification Exam Development and Delivery
Certification exam and delivery are critical business needs for credentialing organizations, which are often outsourced. It refers to the process…
Ace Your Exam: Strategies for Test Preparation
Test preparation for a high-stakes exam can be a daunting task, as obtaining degrees, certifications, and other significant achievements can…
Innovation in Assessment: Learning from Other Industries
One of my favorite quotes is from Mark Twain: “There is no such thing as a new idea. It is…
What is a T score?
A T Score is a conversion of scores on a test to a standardized scale with a mean of 50…
What is the Spearman-Brown formula?
The Spearman-Brown formula, also known as the Spearman-Brown Prophecy Formula or Correction, is a method used in evaluating test reliability. …
Item Writing: Tips for Authoring Test Questions
Item writing (aka item authoring) is a science as well as an art, and if you have done it, you…
Validity Threats and Psychometric Forensics
Validity threats are issues with a test or assessment that hinder the interpretations and use of scores, such as cheating,…