Computerworld‘s 30th annual IT Salary Survey was administered via the Internet. Both Computerworld digital magazine subscribers and visitors to Computerworld.com were included in the survey.

Starting on Aug. 25, 2015, the following methods were used to invite participants to take the survey:

• Visitors to Computerworld.com were presented with a pop-up box inviting them to participate in the survey (with a frequency cap of once per user). Visitors were given the option of bypassing the survey to get to their intended destinations.
• Links to the survey were included in various Computerworld email newsletters, the Web and on social media sites.
• Computerworld digital magazine subscribers employed in IT job functions were sent an email message inviting them to participate in the survey. Sample members could either click on the address to gain access to the questionnaire or enter the address using a Web browser. A survey could not be submitted more than once for each respondent.

Cookies were used to ensure that there was no duplication of responses between or within the various sample groups. In addition, duplicate responses from the same email address were removed.

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