A method for comparing and correlating analyses of changes in cells and tissues wherein one or more analysts analyze features of medical importance in cytology specimens or surgical specimens to determine the degree of variation. A numeric or alphabetic scale is established, going from the least possible variation to the greatest possible variation of the feature. Using such a scale, each analyst assigns a number or letter to the degree of variation. These numbers or letters are displayed in specific locations along the first axis of an orthogonal system. Also displayed is a consensus degree of variation. The determination of one or more analysts is compared to the consensus degree of variation in order to determine, and assign an appropriate indicator based upon, the degree of accuracy. This may be done either visually or with a computer.