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 killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale.
Women who are monozygotic twins and have the same genes are more similar in their marital happiness
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
Colorimetric multiplex assay to determine anti-HLA antibodies in a patient's serum.
Analgesics Used for Dental Pain: Nonsteroidal Anti-Inflammatory Drugs- Salicylates and Other ...
An electrochemical cell is based on these two half-reactions