Do not test for baseline imbalances unless they are known to be present?
نویسندگان
چکیده
منابع مشابه
Border Disease Control Checkpoints: Are They Sufficient for Disease Control? The Present Situation in Thailand
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Recording discrepancies in Nielsen Homescan data: Are they present and do they matter?
We report results from a validation study of the Nielsen Homescan consumer panel data. We use data from a large grocery retailer to match transactions that were recorded by the retailer (at the store) and by the Homescan panelist (at home). The matched data allow us to identify and document discrepancies between the two data sets in reported shopping trips, products, prices, and quantities. We ...
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Road Traffic injuries are known as the most prevalent childhood injury and besides being the greatest cause of child mortality, place an extraordinary burden on health care system. Children’s limitation in cognitive, physical and social development makes them more vulnerable in road traffic injuries than adults. Their small structure cause challenges to see and be seen and their risk taki...
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ژورنال
عنوان ژورنال: Quality of Life Research
سال: 2009
ISSN: 0962-9343,1573-2649
DOI: 10.1007/s11136-009-9452-8