Which of the following is an example of a testable research question?
Why are leaves green?
What methods can doctors develop to cure a cold or other viral illnesses?
Are children who live close to electrical power lines more likely to develop cancer?
What factors cause heart disease?
A chemistry researcher at the University of Iowa was investigating variations in the density of silicon at different temperatures. Unfortunately, the researcher failed to calibrate the laboratory instrument used to make measurements in his experiment, resulting in the same error in density measurement at every temperature tested. This is an example of which type of error?
Type I error
Type II error
A handout distributed on the first day of class describes the difference between applied and basic (pure or theoretical) research. Which of the following is an example of basic research?
investigation of the relationship between cholesterol in the diet and heart disease in middle-aged women
studies to develop improvements in the design of fiber-optic cables used for telecommunications
the development of a vaccine for Ebola
a study of the existence of black holes in the Universe
Write a few sentences below to explain your current understanding of the difference between a hypothesis and a theory.
Please read the Abstract (pg. 2326) and the Introduction (the first 4 paragraphs on page 2327) of the Senn et al. article "Efficacy of a Sexual Assault Resistance Program for University Women" before answering the questions below. Senn_NEJM_2015.pdf
Before scientists develop a hypothesis to guide their research, they make observations about phenomena and develop testable research questions. A hypothesis is a declarative statement that attempts to predict the relationship between two or more variables.
a.) In the Senn et al. article what research question do you think was the basis for this study?
b.) What is the hypothesis that was tested in this study?
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