Monique is planning to run a single-case study on a roommate. She ...

[burton19126]

Monique is planning to run a single-case study on a roommate. She plans to manipulate both
  her roommate's exercise and eating habits for one week to see how they affect mood. How could
  Monique best improve this design?
 
  A) add a third variable to improve external validity
  B) get informed consent from the roommate
  C) only manipulate one variable at a time
  D) use a standardized measurement for mood

Question 2

Nonparametric tests are used to find significant differences between groups, however these tests
 
  A) do not estimate population characteristics
  B) are less reliable than parametric tests
  C) are rarely used in psychological research
  D) must be validated prior to their use

[joanwhite]

Answer to Question 1

C

Answer to Question 2

A

[burton19126]

Thank you!

[joanwhite]

Happy to help