Adouble-blind study is sometimes needed because

a. may have expectations that affect their observations.
b. cannot control every variable outside a laboratory.
c. may not have time for a longitudinal study
d. are bound by a code of ethics

Which one of the following is not a good procedure to follow if you wish to avoid being rear ended by another vehicle

Weak stimulus will cause a weak action potential. the stronger the stimulus, the stronger the action potential. a. true b. false

Look back at act iv scene v to read over ophelia’s interactions with claudius and gertrude as well as laertes. then, compare her dialogue to hamlet’s dialogue and soliloquies previously analyzed in acts i–iv. what is ophelia’s state of mind versus hamlet’s?