The TRACE System - Three-Factor Stratified-Random Sampling Model

A proprietary and unique feature of the TRACE System is a three-factor stratified random sampling model used to determine the optimum size and composition of the group of graduates to be surveyed. The model is the result of a three-year research and development effort; in tandem with our tested and proven data collection methods, the model virtually ensures that the findings will be statistically accurate and representative of the entire graduating class—results rarely if ever obtained using conventional follow-up methods. Note that each cell (or stratum) in the matrix is defined by gender, ethnic/racial group, and GPA—variables that affect both the qualitative and the quantitative results of graduate surveys. How are samples selected?

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