Psychology participant pools provide a ________ sample.

Psychology participant pools provide a ________ sample.
 
  a. convenient
   b. simple random
   c. stratified d. cluster

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A participant pool is
 
  a. a collection of former research participants that have expressed a willingness to conduct future studies.
  b. a group of individuals that have completed a pilot study and are therefore no longer nave to the researcher's hypothesis.
  c. a group of potential research participants (usually college students).
  d. a place where participants can swim and cool off after their arduous research participation.

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Other than humans, the most common research participants are
 
  a. rhesus monkeys
  b. house cats
  c. albino rats
  d. fruit flies

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Even though psychologists are interested in behavioral diversity, most participants in
  psychological experiments are
 
  a. cats and dogs.
   b. animals and introductory psychology students.
  c. rats and pigeons.
  d. farm animals.

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What should be the main determinant of what kind of organism is used in a given experiment?
 
  a. availability
  b. precedent; what others in the field use
  c. cost
   d. the type of research problem