Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...
Background: Injuries represent an important public health problem but their incidence is difficult to estimate. Methods: We conducted a population-based household survey in Greece covering 4079 ...
As internet use grows– whether through a traditional computer, tablet, gaming device or cell phone – new techniques are being developed to conduct social research and measure people’s behavior and ...
Collectively, recreational fisheries can take a significant fraction of the yearly catch—in some cases more than commercial fisheries. It is important that systems used to monitor fishing catch are ...
Collectively, recreational fisheries can take a significant fraction of the yearly catch—in some cases more than commercial fisheries. It is important that systems used to monitor fishing catch are ...
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