True score theory
Subtitle: the four-parameter beta model with binomial errors
By: Frederic M. Lord
Series: Educational Testing Service. Research bulletin -- RB-64-6; Research bulletin (Educational Testing Service) -- RB-64-6
Publisher: Educational Testing Service
Published: 1964
Place of publication: Princeton, N.J
Language: eng
Number of pages: 25
Subjects: Psychometrics; Mathematical statistics
Notes: "January 1964."

"Office of Naval Research Contract Nonr-2752(00)--Project Designation NR 151-201."

Includes bibliographical references (leaf 25).