External validity is enhanced by:
a. Nonprobability sampling
b. Conducting the study at multiple sites
c. Having a comparison group
d. Randomly assigning participants into groups
e. Using a very homogenous group of participants
b. Conducting the study at multiple sites
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In regards to government intervention with economic systems:
a. conservatives believe that a free-market economy is the best way to ensure that the country prospers and individual needs are met. b. liberals believe that the government must be involved in all areas of the economy in order to ensure optimal functioning. c. progressives may prefer more public ownership of industry and services. d. All of the above.
Bipolar I disorder is characterized by severe alterations in mood that are usually episodic
and recurrent
Indicate whether the statement is true or false.Assessments for the behavioral treatment of sexual dysfunction involve:
a. conducting a medical examination to rule out organic problems b. establishing goals for treatment c. conducting extensive interviews to determine the nature of the dysfunction d. all of the above
Age norms represent
a. the socially and culturally defined expectations for how people should behave at a specific point in the life span. b. the socially and culturally defined expectations for how people should behave at a specific point in history. c. personally defined expectations for how people should behave at a specific point in the life span. d. personally defined expectations for how people should behave at a specific point in history.