If a pretest results in a modification of the data-gathering techniques, then that pretest should be ...

If a pretest results in a modification of the data-gathering techniques, then that pretest should be followed by
 
  a. another pretest.
  b. closure.
  c. a pilot study.
  d. public dissemination of results.

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A small-scale trial run of all the procedures planned for use in a research study is called
 
  a. a pilot study.
  b. data analysis.
  c. problem formulation.
  d. a pretest.

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During the problem formulation stage of research, a research problem might be found unacceptable because
 
  a. each of the other answers could render a problem unacceptable.
  b. it is financially impractical.
  c. it involves questions that are not scientific in nature.
  d. it is ethically impractical.