The distraction data reported here were collected as part of the AAA Foundation’s 2013 Traffic Safety Culture Index, a web-enabled nationally-representative probability-based survey of 3,103 U.S. residents ages 16 and older, conducted in English and in Spanish from September 18, 2013 through October 3, 2013 by GfK for the AAA Foundation. A sample of respondents ages 16 and older was recruited from GfK’s KnowledgePanel®5 to complete an online questionnaire. KnowledgePanel® consists of members of households recruited by GfK using standard probability-based random digit dial (RDD) and address-based survey methods. The sampling frame includes all U.S. households reachable by telephone or by regular mail, irrespective of Internet access or use. If a sampled household lacks Internet access or Internet-capable computer, GfK provides Internet access and a netbook computer at no cost to the household. Individuals not sampled by GfK cannot volunteer to join the panel. Because each individual respondent’s probability of selection into the panel and probability of selection for a particular survey are known, statistics can be weighted to reflect the entire population of the United States. The questionnaire was made available in English and Spanish, and respondents were able to complete it in the language of their choice. In total, 7,328 KnowledgePanel® members were invited to complete the questionnaire. (Author/publisher)
Samenvatting