To Reduce Error and Bias, a Test Should Be "Double

Multiple Choice

To reduce error and bias, a test should be "double blind," which means that:

A) the analyst does not know the answer and does not know he or she is being tested.
B) the analyst does not know he or she is being tested and does not know the procedure.
C) the examiner is given routine testing twice a year.
D) the examiner is given routine testing twice a year while being blindfolded.