Bio & Vita
r. Daniel Lewis is Founder & Chief Scientist at Creative Measurement Solutions LLC, where he is actively engaged in confronting measurement and assessment challenges for partners in the industry. His current research—Embedded Standard Setting (Lewis & Cook, 2020)—characterizes his problem-solving strategy: Create simple, efficient, effective, and esthetic solutions that meet essential requirements.
Dan taught elementary school in NE Ohio and mathematics at Kent State University before resolving his dual interest in education and mathematics by completing his Ph.D. in Educational Measurement. He taught educational research methods as an Associate Faculty Member in the Kent State Graduate School of Education until joining CTB/McGraw-Hill in 1995. Dr. Lewis remained with CTB for 20 years, ultimately as Chief Research Advisor, supporting the technical foundations of CTB products and working with state departments of education on test design, reporting, and policy issues. In 1995, Dr. Lewis and Dr. Howard Mitzel (deceased) developed the Bookmark Standard Setting Procedure, an IRT-based method for setting performance standards that has been used by a majority of state education departments, the CIA, Google, and other nations.
Dr. Lewis' subsequent research was foundational to Vertically Moderated Standard Setting (VMSS); his contribution to a special VMSS volume of Applied Measurement in Education earned a 2006 AERA Division D Award for Significant Contributions to Educational Measurement. Following his tenure at CTB, Daniel served as Principal Research Scientist at Pacific Metrics and ACT.
Dan's latest work--Embedded Standard Setting (Lewis & Cook, 2020)--embeds standard setting within principled assessment design, resulting in cut scores that emerge organically from existing test development practices and changing the nature and significantly reducing the scope of, or eliminating, the standard setting workshop. This is expected to result in (a) additional support for the assessment validity argument, (b) improved item and test alignment, (c) defensible cut scores, and (d) significant cost savings for sponsoring agencies.
Daniel and his wife (and business associate), Laura, live in Carmel, CA with their mini-Aussie, Lily.
Dan taught elementary school in NE Ohio and mathematics at Kent State University before resolving his dual interest in education and mathematics by completing his Ph.D. in Educational Measurement. He taught educational research methods as an Associate Faculty Member in the Kent State Graduate School of Education until joining CTB/McGraw-Hill in 1995. Dr. Lewis remained with CTB for 20 years, ultimately as Chief Research Advisor, supporting the technical foundations of CTB products and working with state departments of education on test design, reporting, and policy issues. In 1995, Dr. Lewis and Dr. Howard Mitzel (deceased) developed the Bookmark Standard Setting Procedure, an IRT-based method for setting performance standards that has been used by a majority of state education departments, the CIA, Google, and other nations.
Dr. Lewis' subsequent research was foundational to Vertically Moderated Standard Setting (VMSS); his contribution to a special VMSS volume of Applied Measurement in Education earned a 2006 AERA Division D Award for Significant Contributions to Educational Measurement. Following his tenure at CTB, Daniel served as Principal Research Scientist at Pacific Metrics and ACT.
Dan's latest work--Embedded Standard Setting (Lewis & Cook, 2020)--embeds standard setting within principled assessment design, resulting in cut scores that emerge organically from existing test development practices and changing the nature and significantly reducing the scope of, or eliminating, the standard setting workshop. This is expected to result in (a) additional support for the assessment validity argument, (b) improved item and test alignment, (c) defensible cut scores, and (d) significant cost savings for sponsoring agencies.
Daniel and his wife (and business associate), Laura, live in Carmel, CA with their mini-Aussie, Lily.