The independent variable is the one that is a. free to vary. ...

[mckennatimberlake]

The independent variable is the one that is
 
  a. free to vary.
  b. measured.
  c. manipulated.
  d. the outcome variable.

Question 2

Darwin's evolutionary theory influenced the development of the field of personality psychology through
 
  A) its focus on how a species on an isolated island may differ from its mainland counterpart.
  B) its focus on divine intervention as a mechanism of population change.
  C) the idea that people are subject to the laws of nature, like other animals.
  D) the introduction of fossil evidence as a source of data.
  E) the idea that extinct populations can provide important data.

[AaaA]

Answer to Question 1

C

Answer to Question 2

C