Which of the following methods of providing information about the growth and health of the fetus is the least invasive and most widely used?
a. amniocentesis
b. fetoscopy
c. CVS
d. ultrasound
d
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Replication is essential to the self-correcting nature of science
Indicate whether the statement is true or false
Why is there interest in the role psychosocial factors play in mood disorders?
A. Most federal research money is targeted for the study of psychosocial causes of mental disorders. B. Studies have thoroughly concluded that biology only plays a very minor role. C. Psychosocial factors interact with biological factors to create a predisposition for developing mood disorders. D. A great majority of bipolar patients do not respond at all to drug treatment.
Which of the following factors contributes the least to feelings of thirst?
a. feelings of a dry mouth b. a reduction in intracellular fluid levels c. a reduction in extracellular fluid levels d. an increase in the concentration of extracellular solutes
A researcher repeats a study in exactly the same way. This is called a ______ and tests study ______.
A. literal replication; validity B. conceptual replication; validity C. literal replication; reliability D. conceptual replication; reliability