AN OFFICE TELEPHONE WITH AN ATTACHED AMPLIFICATION UNIT AND AN AUXILIARY MICROPHONE TELEPHONE WAS USED IN FOUR DIFFERENT COLLEGE COURSES FOR REGULARLY SCHEDULED INTERVIEWS WITH PROMINENT INDIVIDUALS. A 1-YEAR EXPERIMENT UTILIZED AN EXPERIMENTAL SECTION AND A CONTROL SECTION FOR COURSES IN AMERICAN GOVERNMENT, MODERN BUSINESS, PHILOSOPHY, AND WORLD LITERATURE. EXPERIMENTAL SECTIONS WERE TAUGHT BY REGULAR METHODS, BUT WITH THE ADDITION OF A TELEPHONE INTERVIEW WHICH WAS EITHER (1) STUDENT-CENTERED WITH A SHORT INSTRUCTOR "WARM-UP" FOR THE INTERVIEW, OR (2) TEACHER-CENTERED WITH STUDENT QUESTIONS FOLLOWING A 20- OR 30-MINUTE INSTRUCTOR INTERROGATION DURING THE INTERVIEW. PRE- AND POST-TESTS CONSISTED OF AN INVENTORY OF BELIEFS AND A KNOWLEDGE TEST. IN THE ONE COURSE IN WHICH COMPLETE TESTING WAS ACCOMPLISHED, THE EXPERIMENTAL GROUP MADE SIGNIFICANTLY HIGHER SCORES WITH RESPECT TO KNOWLEDGE THAN DID THE CONTROL GROUP (TELEPHONE INTERVIEWING WAS NOT INCLUDED IN THIS LATTER GROUP'S SCHEDULE). WHILE EMPIRICAL EVIDENCE FROM TESTING DID NOT ESTABLISH THE VALIDITY OF THE AMPLIFIED TELEPHONE INTERVIEW, OVERWHELMING EVIDENCE FROM INDIVIDUALS INTERVIEWED AND FROM FACULTY AND STUDENT REACTION INDICATED A FAVORABLE ENDORSEMENT OF THE PROGRAM. (JM)