Three assessments of science, 1969-1977
Subtitle: technical summary
By: by the National Assessment of Educational Progress
Contributors: National Center for Education Statistics
Series: Science report ; no. 08-S-21
Publisher: Dept. of Health, Education Division, National Center for Education Statistics
Published: 1979
Place of publication: [Washington]
Language: eng
Number of pages: 78
Subjects: Science -- Study and teaching -- United States -- Evaluation
Notes: Prepared under Contract No. OEC-0-74-0506

April 1979

Bibliography: p. 50