Assessment Services

We offer a full range of psychometric services in addition to comprehensive test development services.

Psychometric Services

Our psychometric team, comprised of psychometricians, data analysts, and software developers, offers extensive educational assessment experience and knowledge of best practices. Guided by the Standards for Educational and Psychological Testing (American Educational Research Association, American Psychological Association, and the National Council on Measurement in Education, 2014), our work is psychometrically sound and adheres to federal peer review requirements.

We offer a full range of psychometric services, including:

  • field test planning
  • operational test design
  • equating
  • scaling
  • classical item analysis
  • IRT analysis
  • differential item functioning analysis
  • alignment studies
  • reliability and validity analyses
  • technical report production
  • standard setting

Test Development Services

We offer comprehensive test development services for standards-based assessments. In addition to developing items and test forms that illuminate instruction, our capabilities include developing item and test specifications, performance and oral assessments, observation checklists, administration manuals, scoring criteria, and interpretation guides. Our test development staff spans content specialists, project directors, editors, graphic artists, and support staff, who are advised by our psychometric team.