WageIndicator collects data through the Salary Survey, voluntary web-based surveys available at national WageIndicator sites. The survey questionnaires consist of multiple-choice questions only, except for the question regarding income.
DAta Reliability
WageIndicator encourages its respondents to provide accurate and precise information about their personal and employment characteristics, pointing out that they provide their professional peers and themselves with an improved salary tool. Before calculation, the dataset is cleaned and compared to other relevant datasets applying universally accepted statistical methods. In this way, WageIndicator eliminates from its datasets most non-trustworthy cases, such as extremely high or low wages.