When interpreting the results of an experiment, we first consider the possibility that the results ...

When interpreting the results of an experiment, we first consider the possibility that the results are due to ____, then second, to ____, and then third, to ____.
 
  a. independent variable; chance; unknown factor
  b. unknown factor; independent variable; confounding variable
  c. chance; unknown factor; independent variable
  d. Type I variable; Type II variable; independent variable

Question 2

What is the first question that you should ask after completing an experiment?
 
  a. Did the independent variable cause the outcome?
  b. Could chance alone account for the outcome?
  c. Is the experiment internally valid?
  d. Is the research hypothesis accurate?

Question 3

Which of the following best describes the relationship between t-test and analysis of variance?
 
  a. t2=r2
  b. F=?
  c. t2=p<.001
  d. F=t2