While the CUPA Survey is an excellent resource for median salary information, it does not provide sufficient information for detailed analysis. The size of the survey sample may be viewed by some people as too volatile because it is too small. It should be noted, however, the more homogeneous a population is, the smaller the sample needed to obtain reliable estimates. Conversely, the more variable a population is, the larger the sample needed to obtain reliable estimates. Nonetheless, increasing the sample size of the study may provide wider general support for the findings.
Some campuses are interested in developing a more diverse environment.
Ethnic diversity of the workforce is a part of this movement. One might hypothesize that ethnicity could be a factor influencing salary. In this study all respondents are white, so the possible effect of ethnicity cannot be considered. Inconsistent data from the national CUPA Study makes it even more difficult to consider any ethnic impact on salary. It is possible that cost of living could be a factor influencing salaries.