Mathematics, 07.03.2020 04:42 vrw28
What is a cross-sectional study? What is a case-control study? Which is the superior observational study? Why? What is a cross-sectional study? Choose the correct answer below. A. Cross-sectional studies first identify a group of individuals to participate in the study. These individuals are then observed over a period of time. Over this period of time, characteristics about the individual are recorded. B. Cross-sectional studies are observational studies that collect information about individuals at a specific point in time or over a very short period of time. C. Cross-sectional studies are a list of all individuals in a population along with certain characteristics of each individual. D. Cross-sectional studies are observational studies that are retrospective, meaning that they require individuals to look back in time or require the researcher to look at existing records.
Answers: 2
Mathematics, 21.06.2019 17:40
Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =
Answers: 1
What is a cross-sectional study? What is a case-control study? Which is the superior observational s...
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