Search Results - Copas, Andrew

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    The Sexunzipped Trial: Optimizing the Design of Online Randomized Controlled Trials by Bailey, Julia V, Pavlou, Menelaos, Copas, Andrew, McCarthy, Ona, Carswell, Ken, Rait, Greta, Hart, Graham, Nazareth, Irwin, Free, Caroline, French, Rebecca, Murray, Elizabeth

    Published 2013
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    Nonprobability Web Surveys to Measure Sexual Behaviors and Attitudes in the General Population: A Comparison With a Probability Sample Interview Survey by Erens, Bob, Burkill, Sarah, Couper, Mick P, Conrad, Frederick, Clifton, Soazig, Tanton, Clare, Phelps, Andrew, Datta, Jessica, Mercer, Catherine H, Sonnenberg, Pam, Prah, Philip, Mitchell, Kirstin R, Wellings, Kaye, Johnson, Anne M, Copas, Andrew J

    Published 2014
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