NotesFAQContact Us
Collection
Advanced
Search Tips
Publication Date
In 20250
Since 20240
Since 2021 (last 5 years)0
Since 2016 (last 10 years)1
Since 2006 (last 20 years)1
Education Level
Elementary Education1
Grade 41
Intermediate Grades1
Audience
Location
Florida1
Laws, Policies, & Programs
Assessments and Surveys
Florida Comprehensive…1
What Works Clearinghouse Rating
Showing one result Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Huggins-Manley, Anne Corinne – Educational and Psychological Measurement, 2017
This study defines subpopulation item parameter drift (SIPD) as a change in item parameters over time that is dependent on subpopulations of examinees, and hypothesizes that the presence of SIPD in anchor items is associated with bias and/or lack of invariance in three psychometric outcomes. Results show that SIPD in anchor items is associated…
Descriptors: Psychometrics, Test Items, Item Response Theory, Hypothesis Testing