________ sampling is a sampling technique that allows researchers with special expertise about a ...

________ sampling is a sampling technique that allows researchers with special expertise about a group to select subjects who represent the population.
 
  A) Accidental
  B) Judgmental
  C) Chain referral
  D) Quota

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Amanda, a graduate student in sociology, is studying gender and job prestige. She uses a sampling technique that requires every element of the entire population studied to be enumerated. Amanda is using
 
  A) simple random sampling.
  B) probability sampling.
  C) purposive sampling.
  D) snowball sampling.

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Dr. Schmitz is drawing a sample for her study on ADHD. She uses a technique that chooses a subset of the population mathematically to represent the entire population. This situation is an example of
 
  A) simple random sampling.
  B) probability sampling.
  C) purposive sampling.
  D) snowball sampling.