THE PURPOSE OF THE STUDY WAS TO DEVELOP A GUIDE FOR THE SELF-EVALUATION OF STATE SUPERVISORY PROGRAMS OF VOCATIONAL EDUCATION IN AGRICULTURE AND TO DESIGN AN INSTRUMENT TO ASSIST IN THIS EVALUATION. TWO NATIONAL JURIES OF EXPERTS IN EDUCATIONAL SUPERVISION ASSISTED IN REFINING A SET OF STATEMENTS, DEVELOPED TO SERVE AS INDICATORS OF SUCCESSFUL IMPLEMENTATION OF GUIDING PRINCIPLES OF STATE SUPERVISION AND EVALUATED THEIR IMPORTANCE TO IMPLEMENTATION OF THE GUIDING PRINCIPLES. PROCEDURES WERE DEVELOPED AND STATE SUPERVISORY STAFF IN FIVE STATES EVALUATED THEIR STATE SUPERVISORY PROGRAMS. IT WAS CONCLUDED THAT--(1) THE INSTRUMENT AND PROCEDURES WOULD BE APPROPRIATE FOR USE IN OTHER STATES, (2) THE USE OF THE INSTRUMENT AND PROCEDURES FOR SELF-EVALUATION WAS AN EFFECTIVE MEANS OF ACHIEVING CHANGE, AND (3) THE 121 INDICATORS LISTED IN THE INSTRUMENT IDENTIFIED THE MAJOR ACTIVITIES OF AN EFFECTIVE STATE SUPERVISORY PROGRAM OF VOCATIONAL EDUCATION IN AGRICULTURE. THIS PH.D. THESIS, WHICH WAS SUBMITTED TO THE OHIO STATE UNIVERSITY, IS AVAILABLE AS 65-5659 FOR $2.75 ON MICROFILM AND FOR $9.70 AS XEROXED COPY FROM UNIVERSITY MICROFILMS, INC., 300 NORTH ZEEB ROAD, ANN ARBOR, MICHIGAN 48106. (JM)