Standard errors of measurement at different ability levels
By: Frederic M. Lord, Educational Testing Service
Contributors: Educational Testing Service
Series: Research report RR-84-8; Research report (Educational Testing Service) -- RR-84-8
Publisher: Educational Testing Service
Published: 1984
Place of publication: Princeton, N.J
Language: eng
Number of pages: 10
Subjects: Examinations; Interpretation; Ability; Testing; Error analysis (Mathematics)
Notes: "March 1984."

Bibliography: p. 9.