• Effective date. Salary studies usually ask participants to provide salary information as of a specific date, or the “effective date.”This is done so that data is static, representing one point in time. Since the data is static, the salary information provided by the participants is comparable and that’s necessary to make reliable comparisons from year to year.
The effective date can be an indicator in and of itself, Soltis points out. “If the information is several years old, it’s outdated and not reliable.”
• Study sample. This is the group of study participants. They could be from one industry or several industries. The study sample tells you whether the participants reflect your competitive market.
There should be a sufficient number of participants for the data to be considered reliable. There’s no magic number because it depends on the total number of organizations in the population. For example, in CUNA’s annual study, the Complete Credit Union Staff Salary Survey, all affiliated credit unions with $1 million or more in assets are asked to participate in the study. That’s the population. Those that participate in the study make up the survey sample.
Although a larger sample size will be more reliable statistically than a smaller sample size, there doesn’t have to be a sizeable number of participants in the sample. It’s more important that the sample be representative of the population, Soltis notes. Also, there should be an adequate number of participants per position and per data cut (where data is broken out by a pay element, such as geographic area).
Compensation experts recommend using three different sources to determine executive compensation market pricing, Soltis says. But boards should consider the competitive market and competitive strategy to select the best salary sources for your credit union.
And finally, make sure these sources contain the data necessary for your competitive strategy, she says. Some salary studies report only the average (a simple mean) and/or the median (the midpoint—or halfway mark—if salaries are ranked from low to high). If you want to use market percentiles (standard points along the range of salaries when ranked from low to high), you should make sure the data source you use reports these percentiles.
Adapted from the December 2010 issue of Credit Union Directors Newsletter.