Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleORAL PROFICIENCY SCALES: CONSTRUCT VALIDITY AND THE HALO EFFECT.AuthorsYorozuya, Ryuichi; Oller, John W.PublicationLanguage Learning, 1980, Vol 30, Issue 1, p135ISSN0023-8333Publication typeArticleDOI10.1111/j.1467-1770.1980.tb00155.x