Charles Secolsky
The Reliability of Complex Item Types for Assessing Cognitive Ability
The term ’,reliability’, is most often used as a statistical estimate defining error associated with the administration and scoring of parallel forms of a test, error associated with the re-administration…
The Evolution of Validity and Modern Psychometrics: Do We Need to Revisit Item Validity?
Early validity studies were concerned with the discriminative capacity of items. Were examinees with high total test scores answering items correctly and were examinees with low total test scores answering…
Infusing Measurement Theory, Cognitive Science and Instructional Design into Post-Secondary Developmental Mathematics Courses
Developmental students present challenges for post-secondary institutions in terms of readiness for an educated labor force. Underprepared individuals often repeat coursework or drop out, leaving behind a wealth of opportunities…
Estimating Examinee Intrinsic Difficulty for Providing Greater Specificity of Feedback for Instruction
Intrinsic difficulties as opposed to proportion correct scores reflect judgments of what students perceive as difficult. By estimating intrinsic difficulties of items, instructors can gain a greater sense of student…