THE OPTIONAL ESSAY PROBLEM AND THE HYPOTHESIS OF EQUAL DIFFICULTY
Allen, Nancy L., Holland, Paul W., Thayer, Dorothy T.Volume:
1993
Language:
english
Journal:
ETS Research Report Series
DOI:
10.1002/j.2333-8504.1993.tb01551.x
Date:
December, 1993
File:
PDF, 3.26 MB
english, 1993