Which of the following is true of a convenience sample?
It is representative of the population.
Every individual in the population has an equal chance of being selected.
People are chosen just because they are available or easy to study.
The mean for this sample is probably the same as for the whole population.
What sex chromosomes does a man have?
two X chromosomes
two Y chromosomes
one X and one Y
one Y
Which part of the nervous system controls reflexes, such as the knee-jerk reflex?
cerebral cortex
cerebellum
spinal cord
thalamus
What education does a psychiatrist have?
Ph.D. or Psy.D.
M.D.
M.S.
bachelor’s degree only
According to Piaget, accommodation refers to
changing existing schemata for new information
fitting new information into existing schemata
experimenting with new theories
none of the above
