The comparison of pupils' achievement with their capacity.
Contributors: University of Illinois at Urbana-Champaign. Bureau of Educational Research.
Series: Illinois. University. Bureau of Educational Research. Educational research circular -- no. 51; Educational research circular (University of Illinois at Urbana-Champaign. Bureau of Educational Research) -- no. 51.
Publisher: University of Illinois
Published: 1929
Place of publication: Urbana
Language: eng
Subjects: Ability -- Testing.; Intelligence tests.; Academic achievement.
Notes: At head of title: University of Illinois bulletin, v.26, no.28.

Cover title.