Purpura, James E. Learner strategy use and performance on language tests : a structural equation modeling approach / James E. Purpura - Cambridge : Cambridge Univ. Press, 1999 - 260 p. : ill. - Studies in language testing ; 8 . Includes bibliographical references and indexes ISBN: 0521658756 Subjects--Topical Terms: LANGUAGE AND LANGUAGES--ABILITY TESTING LC Class. No.: P53.4 / P876L