The effect of random guessing on test validity
By: Frederic M. Lord
Series: Research bulletin / Educational Testing Service -- 64-9; Research bulletin (Educational Testing Service) -- RB-64-9
Publisher: Educational Testing Service
Published: 1964
Place of publication: Princeton, New Jersey
Language: eng
Subjects: Educational tests and measurements
Notes: This bulletin is a draft for interoffice circulation. It is automatically superseded upon formal publication of the material.--T.p.

"February 1964."