Does sampling using random digit dialling really cost more than sampling from telephone directories: Debunking the myths
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Does sampling using random digit dialling really cost more than sampling from telephone directories: Debunking the myths
BACKGROUND Computer assisted telephone interviewing (CATI) is widely used for health surveys. The advantages of CATI over face-to-face interviewing are timeliness and cost reduction to achieve the same sample size and geographical coverage. Two major CATI sampling procedures are used: sampling directly from the electronic white pages (EWP) telephone directory and list assisted random digit dial...
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Knowledge of the characteristics of survey non-respondents is important to determine generalizability to the population of interest. In a recent random-digit dialling survey of health behaviours only 73 per cent of the households contacted provided any information about household composition, and only 74 per cent of those actually completed the extended interview, for an overall response rate o...
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As part of an on-going effort to expand coverage for and participation in the Behavioral Risk Factor Surveillance System (BRFSS), a pilot study was conducted to determine if a mail survey conducted with a random sample of adults selected from an address-only sampling frame (the USPS Delivery Sequence File) could rival the quality of the data collected using more traditional random-digit dial (R...
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With the huge volumes of electronic data subject to discovery in virtually every instance of litigation, time and costs of conducting discovery have become exceedingly important when litigants plan their discovery strategies. Rather than incurring the costs of having lawyers review every document produced in response to a discovery request in search of relevant evidence, a cost effective strate...
متن کاملRandom Sampling from Databases
Random Sampling from Databases by Frank Olken Doctor of Philosophy in Computer Science University of California at Berkeley Professor Michael Stonebraker, Chair In this thesis I describe e cient methods of answering random sampling queries of relational databases, i.e., retrieving random samples of the results of relational queries. I begin with a discussion of the motivation for including samp...
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ژورنال
عنوان ژورنال: BMC Medical Research Methodology
سال: 2006
ISSN: 1471-2288
DOI: 10.1186/1471-2288-6-6