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.
The One Parameter Logistic Model
The One Parameter Logistic Model (OPLM or 1PL or IRT 1PL) is one of the three main dichotomous models in…
Borderline group method standard setting
The borderline group method of standard setting is one of the most common approaches to establishing a cutscore for an…
Ebel Method of Standard Setting
The Ebel method of standard setting is a psychometric approach to establish a cutscore for tests consisting of multiple-choice questions. It…
Item Parameter Drift
Item parameter drift (IPD) refers to the phenomenon in which the parameter values of a given test item change over…
Speeded Test vs Power Test
The concept of Speeded vs Power Test is one of the ways of differentiating psychometric or educational assessments. In the…
Item Fit Analysis
Item fit analysis is a type of model-data fit evaluation that is specific to the performance of test items. It…
Distractor Analysis for Test Items
Distractor analysis refers to the process of evaluating the performance of incorrect answers vs the correct answer for multiple choice…
Educational Assessment of Mathematics
Educational assessment of Mathematics achievement is a critical aspect of most educational ministries and programs across the world. One might…
What is multi-modal test delivery?
Multi-modal test delivery refers to an exam that is capable of being delivered in several different ways, or of a…
Confidence Interval for Test Scores
A confidence interval for test scores is a common way to interpret the results of a test by phrasing it…
Composite Test Score
A composite test score refers to a test score that is combined from the scores of multiple tests, that is,…
Inter-Rater Reliability vs Agreement
Inter-rater reliability and inter-rater agreement are important concepts in certain psychometric situations. For many assessments, there is never any encounter…
Split Half Reliability Index
Split Half Reliability is an internal consistency approach to quantifying the reliability of a test, in the paradigm of classical…
What is a Cutscore or Passing Point?
A cutscore or passing point (aka cut-off score and cutoff score as well) is a score on a test that…
Nedelsky Method of Standard Setting
The Nedelsky method is an approach to setting the cutscore of an exam. Originally suggested by Nedelsky (1954), it is…
What is Scaled Scoring on a Test?
Scaled scoring is a process used in assessment and psychometrics to transform exam scores to another scale (set of numbers),…
What are Enemy Items?
Enemy items is a psychometric term that refers to two test questions (items) which should not be on the same…
HR Assessment for Pre-Employment: Approaches and Solutions
HR assessment is a critical part of the HR ecosystem, used to select the best candidates with pre-employment testing, assess…