Question 7.7

7.7 Confidentiality? If, in a study, it is not possible to determine which subjects produced which data, we would say

  1. (a) the subjects are anonymous.

  2. (b) the study is confidential, but subjects are not anonymous.

  3. (c) the study is double-blind.

  4. (d) the study is blind, but not double-blind.