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.
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 in Assessment?
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,…
Item Review Workflow for Exam Development
Item review is the process of ensuring that newly-written test questions go through a rigorous peer review, to ensure that…
Likert Scale Items
Likert scales (items) are a type of item used in human psychoeducational assessment, primarily to assess noncognitive constructs. That is,…
What are Stackable Credentials?
Stackable credentials refer to the practice of accumulating a series of credentials such as certifications or microcredentials over time. In today’s…
Test Blueprints & Specifications
Test blueprints, aka test specifications (shortened to “test specs”), are the formalized design of an assessment, test, or exam. This…
Test Publishing Quality Control
Test publishing is the process of preparing computer-based assessments for delivery on an electronic platform. Test publishing is like a…
What is a testlet?
Testlet is a term in educational assessment that refers to a set of test items or questions grouped together on…
Job Task Analysis Study: Why essential for Certification?
Job Task Analysis (JTA) is a formal process to define what is being done in a profession, especially what is…
Question and Test Interoperability (QTI)
Question and Test Interoperability® (QTI®) is a set of standards around the format of import/export files for test questions in…
Assessment Systems presents at the Conference on Test Security (COTS)
The Conference on Test Security is a scholarly conference devoted to the topic of security in educational, credentialing, and employment…
Four-Fifths Rule: Fair Employment Selection
The Four-Fifths Rule is a term that refers to a guideline for fairness in hiring practices in the USA. Because…
Classical Test Theory: Item Statistics
Classical Test Theory (CTT) is a psychometric approach to analyzing, improving, scoring, and validating assessments. It is based on relatively…
Content Validity in Assessment
Content validity is an aspect of validity, a term that psychometricians use to refer to evidence that interpretations of test…