Randall's island performance series, two ,three and four year tests
By: by ... and others.
Publisher: Columbia University
Published: 1931
Place of publication: N.Y
Language: eng
Subjects: Educational statistics.
Notes: The scale of performance tests presented here is the coucome of cooperation between the Department of psychology of Columbia university and the Psychological laboratory of the Childrens hospital and schools on Randalls island a New Youk city institution.