(C) fixed interval
(D) variable ratio
(E) variable interval- Which of the following is an opiate?
(A) cocaine
(B) amphetamines
(C) heroin
(D) nicotine
(E) caffeine- Which structure is found in the middle ear?
(A) stirrup
(B) auditory nerve
(C) cochlea
(D) organ of Corti
(E) pinna
Mr. Kan is making soup. After tasting it, he decides it needs more salt and slowly adds some until
he can first detect that the soup is saltier than it was before. The amount of salt Mr. Kan needs to
add depends on his
(A) absolute threshold.
(B) perceptual set.
(C) difference threshold.
(D) olfactory sensitivity.
(E) gate-control theory.
Which type of scan uses X-ray technology to examine the structure of the brain?
(A) PET
(B) MRI
(C) CAT
(D) EEG
(E) fMRI- To safeguard participants’ rights, prior to collecting any data, researchers are supposed to seek
approval from
(A) the American Psychological Association.
(B) at least two licensed psychiatrists.
(C) an Institutional Review Board.
(D) at least one psychiatrist and one psychologist.