This thesis is an investigation of interviewer bias. The data upon which this thesis is based were collected from two surveys which were conducted in Bradley and White Counties, Tennessee. A survey was conducted at the beginning and one at the termination of the “Trial-Acre Fertilizer Demonstration and Education Experiment.” The terminal survey, it was anticipated, would measure the change that had taken place since the experiment was initiated. A brief background of the “Trial-Acre” program is given before the problem of interviewer bias is approached
