Behavioral Science

204 Deja Review: Behavioral Science
Which bias can occur if the subjects
studied are not representative of the
target population about which
conclusions are drawn?
What percentage of patients generally
respond to placebos?
What happens to the response rate to
placebos in psychiatric conditions?
What is the definition of a doubleblind
study?
If initially group A receives a treatment
and group B receives a placebo and
later the protocol is switched so that
group A receives the placebo and
group B receives a treatment,
what type of research study is
being utilized?
What is reliability?
What type of reliability is demonstrated
when different examiners are able to
achieve test results that are similar?
What type of reliability is demonstrated
when subsequent tests yield similar
results to initial tests?
What is the definition of validity?
What is the definition of precision?
What is the definition of accuracy?
Selection bias
Usually at least 33% of patients
It increases in psychiatric illnesses.
A study in which neither the research
scientist nor the subject knows which
participants are in the experimental
group and which are in the control
group.
Crossover studies
It is the reproducibility of a given test.
Interrater reliability
Test-retest reliability
It determines whether a test measures
what it is supposed to measure.
It is the consistency and reproducibility
of a test. On a dartboard, it would be
hitting the same place over and over
(though not necessarily the correct
place).
It determines how true test measurements
are. On a dartboard, it would be hitting
the correct place (though perhaps not
consistently).