Mail surveys have the concern of _____ but have the advantage of ...

[charchew]

Mail surveys have the concern of _____ but have the advantage of _____.
 
  a. low return rate; eliminating interviewer bias
  b. interviewer bias; high return rate
  c. sampling bias; interviewer bias
  d. increasing socially desirable responses; high return rate

Question 2

Marnie keeps answering the questions on the survey she is taking as she thinks most others in society would answer them, rather than with her true responses. Marnie's answers illustrate _____.
 
  a. interviewer bias.
  b. sampling bias.
  c. experimenter effects.
  d. socially desirable responses

[dyrone]

Answer to Question 1

a

Answer to Question 2

d