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.
Progress Monitoring in Education
Progress monitoring is an essential component of a modern educational system and is often facilitated through Learning Management Systems (LMS),…
What is Vertical Scaling in Assessment?
Vertical scaling in educational assessments is the process of placing scores that measure the same knowledge domain but at different…
Test Score Equating and Linking
Test equating refers to the issue of defensibly translating scores from one test form to another. That is, if you…
Examinee Collusion: Primary vs Secondary
In the field of psychometric forensics, examinee collusion refers to cases where an examinee takes a test with some sort…
What is the Positive Manifold?
Positive manifold refers to the fact that scores on cognitive assessment tend to correlate very highly with each other, indicating…
The Bookmark Method of Standard Setting
The Bookmark Method of standard setting (Lewis, Mitzel, & Green, 1996) is a scientifically-based approach to setting cutscores on an…
What is an Assessment / Test Battery?
A test battery or assessment battery is a set multiple psychometrically-distinct exams delivered in one administration. In some cases, these…
Test Response Function in Item Response Theory
The Test Response Function (TRF) in item response theory (IRT) is a mathematical function that describes the relationship between the…
What is a Psychometric Test or Assessment?
Psychometric tests are assessments of people to measure psychological attributes such as personality or intelligence. Over the past century, psychometric…
Three Approaches for IRT Equating
IRT equating is the process of equating test forms or item pools using item response theory to ensure that scores…
The Rasch model
The Rasch model, also known as the one-parameter logistic model, was developed by Danish mathematician Georg Rasch and published in…
Paper-and-Pencil Testing: Still Around?
Paper-and-pencil testing used to be the only way to deliver assessments at scale. The introduction of computer-based testing (CBT) in…
Power of linear on the fly testing
Linear on the fly testing (LOFT) is an approach to assessment delivery that increases test security by limiting item exposure….
Item-total point-biserial correlation
The item-total point-biserial correlation is a common psychometric index regarding the quality of a test item, namely how well it…
CalHR Selects Assessment Systems as Vendor for Personnel Selection
The California Department of Human Resources (CalHR, calhr.ca.gov/) has selected Assessment Systems Corporation (ASC, assess.com) as its vendor for an online assessment…
Learn About Tech Innovation With Dr. Nathan Thompson On The EdNorth EdTech Podcast
Nathan Thompson, Ph.D., was recently invited to talk about ASC and the future of educational assessment on the Ednorth EdTech…
Tips to Select a Student Assessment Tool
With the overcrowded digital assessment marketplace, it can be hard to decide which online assessment tool will work for you.
What is a Standard Setting Study?
A standard setting study is a formal process for establishing a performance standard. In the assessment world, there are actually two uses of the word standard – the other one refers to…