Timothy R. Vansickle

The Riverside Publishing Co. published textbooks and other educational materials for the school and college markets. It provided professional testing products and services for the K-12 educational assessment and clinical assessment market. The firm also provided functional score reports and scoring services. The company was founded in 1852 and was headquartered in Rolling Meadows, IL.

The American Psychological Association (APA) is a scientific and professional organization that represents psychologists. The non-profit company is based in Washington and has subsidiaries in the United States. APA educates the public about psychology, behavioral science, and mental health. It promotes psychological science and practice, fosters the education and training of psychological scientists, practitioners, and educators. APA advocates for psychological knowledge and practice to inform public policy and champions the application of psychology to promote human rights, health, well-being, and dignity. Arthur C. Evans has been the CEO of the American company since 2017.

Questar Assessment, Inc. engages in providing educational assessment for states, schools and school districts. Its product includes Large-Scale Assessment and District Literacy Assessments. The company was founded by Andrew Simon in 1976 and is headquartered in Minneapolis, MN.

American Educational Research Association operates as a national research society that promotes the dissemination and practical application of research results. Its programs include communication, professional development and training, government relations, and social justice. The company was founded in 1916 and is headquartered in Washington, DC.

The Association for Psychological Science is a nonprofit organization dedicated to the advancement of scientific psychology and its representation at the national and international level. The company was founded in 1988 and is headquartered in Washington, DC.

The National Council on Measurement in Education is a professional organization that focuses on assessment, evaluation, testing, and other aspects of educational measurement. The non-profit company is based in Madison, WI. The organization's mission has broadened over the past 20 years to include service to communities and ensuring that assessment is fair and equitable for all students.