Which of the following is an example of purposive sampling? a. ...

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Which of the following is an example of purposive sampling?
 
  a. The names of all possible subjects are put into a hat, and an adequate number are drawn out.
  b. Volunteers are solicited from the entire population, and those who agree become subjects in the study.
  c. Sample members are determined by finding a designated number of subjects from each of several identified groups (men, women, high school graduates, etc.).
  d. Subjects who have knowledge about the study topic are asked to participate in the study; those who agree become the sample.

Question 2

Which of the following is true about theoretical sampling?
 
  a. All studies use theoretical sampling as a background for creating the sample.
  b. Grounded theory research frequently uses theoretical sampling to develop a selected theory.
  c. Subjects are selected to participate in a research study to match certain theory characteristics.
  d. Theoretical sampling is a little-used, but powerful method of creating a sample for quantitative research.

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Answer to Question 1

ANS: B
Purposive sampling is when appropriate subjects are found by the researcher and asked to participate in the study.
The determination of sample members by finding members who meet certain criteria required of the population describes quota sampling.
Pulling and adequate number of names of all possible subjects out of a hat is an example of simple random sample.
Asking readily available, agreeable subjects who meet the criteria to participate in the study if a form of convenience sampling.

Answer to Question 2

ANS: B
Because of the nature of grounded theory methodology, theoretical sampling is used.
Depending upon the methods used will help determine the sampling methods used.
Theoretical sampling is used in qualitative research.
Theoretical sampling is often used in grounded theory.

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