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JupiterResearch/NPD Wireless Consumer Survey (3/08), n = 2,471 (US Only)

In March 2008, JupiterResearch designed and fielded a survey to online consumers selected randomly from the NPD Group US online consumer panel. A total of 2,471 individuals responded to the survey. Respondents were asked approximately 35 closed-ended questions about their ownership, behaviors and preferences regarding cell phones and wireless service. Respondents received an e-mail invitation to participate in the survey with an attached URL linked to the Web-based survey form. The samples were carefully balanced by a series of demographic and behavioral characteristics to ensure that they were representative of the online population. Demographic weighting variables included age, gender, household income, household education, household type, region, and market size. Additionally, JupiterResearch weighted the data by AOL usage, online tenure and connection speed (broadband versus dial-up), three key determinants of online behavior. Balancing quotas are derived from JupiterResearch's Internet Population Model which relies on US Census Bureau data and a rich foundation of primary consumer survey research to determine the size, demographics and ethnographics of the US online population. The survey data are fully applicable to the US online population within a confidence interval of plus or minus three percent.