SIX ACHIEVEMENT TESTS IN DIFFERENT SUBJECT AREAS THAT WERE ADMINISTERED TO COLLEGE FRESHMEN RESULTED IN BETTER PERFORMANCES BY STUDENTS WITH A FOREIGN LANGUAGE BACKGROUND. DESPITE VARIOUS EXPLANATIONS OFFERED (INTELLIGENCE, MOTIVATION), THE SUPERIORITY PERSISTS WHEN COMPARISON IS MADE WITH CITY HIGH SCHOOL PRODUCTS, GRADE POINT AVERAGE, OR HONOR ROLL REPRESENTATION. BASED ON STATISTICAL ANALYSIS AND EXPERIENCE, ONE CONCLUSION THAT CAN BE MADE IS THAT FOREIGN LANGUAGE STUDY IMPROVES COMMAND OF ONE'S OWN LANGUAGE, AND THUS ONE'S CONTROLLING ABILITY IN OTHER AREAS OF STUDY WHERE LANGUAGE IS THE VEHICLE OF INSTRUCTION. THIS ARTICLE IS A REPRINT FROM "THE MODERN LANGUAGE JOURNAL," VOLUME 42, NUMBER 1, JANUARY 1958, PAGES 8-10. (AF)