Monique manipulates self-esteem to be either high, moderate, or ...

[roselinechinyere27m]

Monique manipulates self-esteem to be either high, moderate, or low. She finds that performance is significantly better at moderate levels of self-esteem than it is at either high or low levels. Monique has found an example of
 
  a. a linear relationship.
  b. two independent variables.
  c. a curvilinear relationship.
  d. a scatter relationship.

Question 2

Which of the following are necessary in an experimental design?
 
  a. Random assignment and control condition
  b. Experimental manipulation and control condition
  c. Random assignment and experimental manipulation
  d. Null hypothesis and control condition

[mcabuhat]

Answer to Question 1

c

Answer to Question 2

c