Despite controversies over validity, the instrument has demonstrated widespread influence since its adoption by the Educational Testing Service in 1962. It is estimated that 50 million people have taken the Myers-Briggs Type Indicator and that 10,000 businesses, 2,500 colleges and universities, and 200 government agencies in the United States use the MBTI.
despite controversies over validity the instrument has demonstrated widespread influence since its adoption by the educational testing service in 1962 it is estimated that 50 million people have taken the myers-briggs type indicator and that 10000 businesses 2500 colleges and universities and 200 government agencies in the united states use the mbti