1 Which of the following is NOT one of the three fundamental features of science?
a empirical questions
b public knowledge
c mathematical equations
d systematic empiricism
2 A set of beliefs can be said to be pseudoscientific if it lacks one or more of the three features of science and _____.
a its adherents claim or imply that it is scientific
b it has been discredited by scientific research
c it seems “crazy”
d it refers to phenomena that cannot be directly observed
3 Research questions in psychology can come from which of the following?
a previous research
b informal observations
c practical problems to be solved
d all of the above
4 Which of the following is a categorical variable?
a eye color
c number of lifetime sexual partners
d shoe size
5 A research methods student conducts a study on the relationship between people’s level of extroversion and the number of close friends they have. She computes Pearson’s r, which comes out to be – 1.70. Which of the following is most clearly true?
a The relationship between the two variables is weak.
b More extroverted people have fewer friends.
c She ought to use a bar graph to display her results.
d She made an error in computing Pearson’s r.
6 When you want to show that Variable X has a direct effect on Variable Y, what is the best kind of study to conduct?
a a non-experimental study
b an experiment
c an observational study
d a survey
7 The relationship between people’s heights and weights is positive.
8 In a negative relationship, higher scores on one variable are associated with lower scores on another variable.
9 Pearson’s r cannot be negative.
10 What three groups must be taken into account in the consideration of the ethics of a research project?
b clinical practitioners
c the scientific community
d research participants