An experiment can be assumed to have internal validity if
A. the dependent variable is valid.
B. random assignment and experimental control are employed.
C. confounding variables are present.
D. there is a strong manipulation of the independent variable.
Answer: B
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What is the suspected cause of Creutzfeldt-Jakob disease?
a. dopamine deficiency b. a slow-acting virus c. overexposure to aluminum d. an abnormality on chromosome 21
Compared to heterosexual wives, women in lesbian relationships report
a. greater satisfaction with their sexual activity. b. greater dissatisfaction with inequalities in the relationship. c. greater satisfaction with their sexual activity and greater dissatisfaction with relationship inequalities. d. none of these.
The naturalistic and humane treatment of patients that was inspired by Hippocrates and Galen lasted until the:
a. Renaissance b. collapse of the Roman Empire c. Reformation d. present time
Phil is being treated for obsessive-compulsive disorder. The treatment involves gradually exposing him to the anxiety-producing situation that Phil is trying to avoid. This treatment is called:
a. anxiety therapy c. exposure therapy b. avoidance therapy d. stimulus therapy