Most threats to ____________________ are taken care of by the ...

[mckennatimberlake]

Most threats to ___________________ _ are taken care of by the experiment's design, while most threats to ___________________ __ need to be taken care of by the designer of the experiment.
 
  a) internal validity, external validity
  b) external validity, internal validity
  c) randomization, reliability
  d) reliability, randomization

Question 2

Which of the following would NOT be included in a prepared manuscript?
 
  a) acknowledgements
  b) title page
  c) method
  d) references

[ju]

Answer to Question 1

a

Answer to Question 2

a