A method of predicting a quality of a professional based on quality measures of the professional is provided. The method includes collecting recommendations associated with the professional and determining an independent variable for the professional based on the recommendations received for the professional. Here, the independent variable reflects the quality of the professional. The method also includes comparing the independent variable with quality measures associated with the professional and generating a model based on the comparison between the independent variable and the quality measures. The model associates each of the quality measures with the quality of the professional. Particularly, the model assigns a weight to each of the quality measures based on the probativeness of the quality measure in relation to the quality of the professional. Thus, the quality measure of the professional may be used to determine the overall quality of the professional.