In an experiment involving three independent variables, it is possible for the results to show
a. more than three main effects.
b. a factorial design.
c. higher order interactions.
d. extraneous variables.
C
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Recent research suggests that severe migraine headaches may involve a ____
a. structural change in brain c. stimulus specificity b. autonomic stress response d. somatic weakness
The results ofresearch on genetic and environmental factors involved in alcohol abuse find that ____
a. genetic factors accounted for 56 percent of the risk of alcohol dependence b. genetic factors accounted for 75 percent of the risk of alcohol abuse c. genetic factors accounted for 45 percent of the risk of alcohol dependence while shared early environment made an 11 percent contribution to risk d. genetic factors made no significant contribution to risk of alcohol dependence while early environment made accounted for 56 percent of the risk of alcohol dependence
A symptom of panic disorder is
a. unexpected panic attacks. b. at least one month or more of concern or worry about panic attacks. c. significant maladaptive behavior change related to the panic attacks. d. all of these are symptoms of panic disorder.
Mothers are more likely than fathers to treat sons and daughters differently
Indicate whether the statement is true or false