A researcher gives half of her participants a new anti-anxiety pill and the other half a placebo pill. She does not tell participants whether they have received an active treatment pill or a sugar pill. This is an example of what type of study?
a. a prospective study
b. a single-blind study
c. a double-blind study
d. a observational study
Question 2
A subject in your study correctly assumes that you are interested in whether people behave in a prejudicial way towards people of a homosexual orientation. She then goes out of her way to act friendly and nice. This represents an example of ______________
a. the placebo effect
b. participant bias
c. error
d. experimenter bias
A model of anxiety in which stressful events or a changing mental condition can produce unfavorable
Male Turkmen in the wealthier half of the population had higher fertility rates than those in the po
anxiety
Half Full or Half Empty
Anti-Inflammatory Drugs for Asthma and COPD
Common Anti-Emetics