Why can't the regression coefficients in correlation analysis be interpreted as the causal effect of a treatment on the outcome?
A. Regression coefficients in correlation analysis cannot be consistent.
B. Co-movement/correlation amongst two variables could be generated by their relationship to other variables.
C. Regression coefficients in correlation analysis cannot be unbiased.
D. You cannot conduct hypothesis tests on coefficients in correlation analysis.
Answer: B
You might also like to view...
What is the effect of genetic drift on evolution? How does the founder effect work to cause change in allele frequency?
What will be an ideal response?
The basic structure of a virus includes the:
A. Inner nucleus and outer capsid B. Outer capsid and outer cell membrane C. Inner core and outer cell membrane D. Outer capsid and inner core
Do mycorrhizal symbioses occur between fungus and nonphotosynthetic plants?
A. No; nonphotosynthetic plants do not need phosphate. B. Yes; nonphotosynthetic plants also need minerals. C. Yes; nonphotosynthetic plants can generate organic compounds without photosynthesis. D. No; nonphotosynthetic plants cannot provide organic compounds to fungi.
The following marine biologist was aboard the HMS Beagle in 1831:
a. Edward Forbes. b. Charles Wyville Thomson. c. Alexander Agassiz. d. Charles Darwin. e. Jean-Baptiste Lamarck.