What is the role of a principal investigator?

What is the role of a principal investigator?
 
  What will be an ideal response?

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_________ identifies individuals responsible for conducting a research study.
 
  a. authorship
  b. grant funding
  c. IRB protocol
  d. faculty status

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Which of the characteristics of scientific research indicates the reliability of operational definitions?
 
  a. meta-analysis
  b. control
  c. placebo
  d. replication

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To be classified as history, an event must have happened at least __________ years ago.
 
  A) 15 B) 7 C) 10 D) 12

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Which of the following is the most difficult part of conducting research over the internet?
 
  a. informed consent
  b. privacy
  c. debriefing
  d. confidentiality