2010-01-04-皮尤-Internet,_broadband,_and_cell_phone_statistics_16页_540kb
报告摘要
- Report Source: Pew Research Center’s Internet & American Life Project (January 5, 2010).
- Overview: An analysis of a November 2009 survey found that 74% of American adults (ages 18+) were internet users, a small decrease from earlier 2009 surveys. This stable percentage has persisted since 2006 according to Project data.
- Internet Users (Overview): 74% of surveyed adults use the Internet. Methodology included landline/ cell phone interviews and Spanish-language interviews, noted as encouraging more diverse representation. Issues with prior data regarding racial/ethnic groups were correlated and corrected. Data goes back to November 2004.
- Broadband Users (Overview): 60% of American adults use home broadband, a slight decrease from April 2009 and considered within the margin of error (±2.8pp). No significant growth since 2006 was observed in this specific data series.
- Wireless Internet Users (Overview): 55% of surveyed adults use the internet wirelessly (via laptops or handheld devices), a stable figure from 2009. This group includes laptop Wi/Fi users (46% owning laptops) and cell phone/ smart phone users accessing the net (83% owned such devices).
- Methodology: Data from a landline/cellular telephone survey using RDD samples conducted Nov 30-Dec 27, 2009 (N=2,258 adults). Margin of error ±2.4pp/±2.8pp. Methodology details include recruitment, callbacks, cooperation rates, and weighting against census data.
- Funding/Credit: The project provides information on internet use without taking policy stances (e.g. saw "fact tank"). The poll was conducted by Princeton Survey Research Associates International (PSRAI) for the Pew Research Center.
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