A survey was undertaken to measure the success of a group of farmers and from it develop an index of management efficiency. The purpose of the survey was to observe and attempt to rate farmers on those personal factors which could possibly influence or be associated with management efficiency. From the observations made, the author was able to draw conclusions as to which personal factors are associated with management efficiency and show how the data collected support the conclusions reached. Previous studies of factors affecting management efficiency have largely neglected personal factors. In the Rotorua area serviceman settlement has resulted in a number of farms which, because of the elimination of many important variables, are particularly suitable, both for the measurement of success from accounts and for the assessment of the personal factor in an interview.