When institutional approval is required to conduct an experiment, ...

[imanialler]

When institutional approval is required to conduct an experiment, when can a researcher start recruitment of participants and data collection for the given study?
 
  A) Before approval, as long as it is sent to the institutional review board before
  starting data collection
  B) During institutional review, so long as the study is being reviewed by the
  institutional review board while data collection is taking place
  C) After approval, because an institutional review board must first approve
  the study before recruitment or data collection may begin
  D) At any time, because after you have started recruitment and data collection,
  you will know if it requires institutional approval

Question 2

If the exact degree of difference between two scores has no meaning beyond the fact that one ishigher than the other, the level of measurement is
 
  A) nominal.
  B) extraneous.
  C) rank-order.
  D) equal-interval.

[kthug]

Answer to Question 1

C

Answer to Question 2

C

[imanialler]

Thank you!

[kthug]

Happy to help