Which of the following is a potential problem of using correlational studies in psychological research?
A. They do not allow researchers to use just one variable to predict the movement of the other variable.
B. They fail to establish a clear causal relationship between variables.
C. They can be used to study the relationship between only two variables.
D. They cannot be used in situations where the issue of ethics is important.
Answer: B
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How are the degrees of freedom for the Wilcoxon rank-sum test determined?
a. N – 1 b. N(n – 1) c. N – k d. There are no degrees of freedom for the Wilcoxon rank-sum test.
Glutamate opens sodium gates, enabling sodium ions to enter the postsynaptic cell. What type of effect is this?
A. Metabotropic B. Ionotropic C. Modulatory D. Orthodromic
Frank and Gina are looking at an abstract painting in a museum. Gina describes objects and people she thinks she sees in the painting. Frank says, "It's a bunch of paint thrown on a canvas."
Gina responds, "No, there is so much here that you just don't see." During lunch they agree that their experience reminds them of which concept they learned in introductory psychology? a) social cognition b) trait theory c) projective testing d) the Big Five
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Answer the following statement true (T) or false (F)