The null hypothesis for a correlation coefficient states that _____
a. the variables are independent
b. the variables are related
c. the correlation does not differ significantly from zero
d. all of these are statements of the null hypothesis for a correlation coefficient
D
The null hypothesis can be stated in any of these ways.
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In a recent study using fMRI, participants tasted the same wine when they thought it was inexpensive and when they thought it was expensive. Participants enjoyed the wine more when they believed it was expensive. This was correlated with increased activity in which brain region?
A) the olfactory bulb B) the medial orbitofrontal cortex C) the basal ganglia D) the hypothalamus
Freud argued that people have great freedom in determining the future and have much potential for personal growth
Indicate whether the statement is true or false
Chantel's friends all prefer long hair and low-rise jeans. They have encouraged her to adopt the same look. Chantel now prefers this mode of dress and criticizes others who dress differently. Chantel's attitude was acquired through
a. direct experience. c. direct experience and reinforcement. b. reinforcement. d. none of these
Which of the following is NOT the way you can understand interaction effects?
A. through inspecting cell means B. through inspecting marginal means C. by graphing the cell means D. by a verbal description of results