Blinding the researcher is a strategy for overcoming which threat ...

[K@]

Blinding the researcher is a strategy for overcoming which threat to validity?
 
  a. evaluation apprehension
  b. role demands
  c. experimenter bias
  d. selection bias

Question 2

When an experimenter knows what the results of an experiment should be, it is possible for the results to be unintentionally influenced. This is an example of
 
  a. evaluation apprehension
  b. role demands
  c. experimenter bias
  d. selection bias

[CourtneyCNorton]

Answer to Question 1

c

Answer to Question 2

c