A correlation exists when a. two variables are related to each ...

[cmoore54]

A correlation exists when
 
  a. two variables are related to each other.
  b. two variables have the same underlying cause.
  c. two variables are affected by a third variable.
  d. a cause-and-effect relationship exists between two variables.

Question 2

Dr. Jones wants to determine whether women who smoke while pregnant will have children with more respiratory problems than those born to mothers who do not smoke. Dr. Jones should use a(n) _____ methodology.
 
  a. experimental c. case study
  b. naturalistic observation d. correlational

[gasdhashg]

Answer to Question 1

A

Answer to Question 2

D
REF. 8

[cmoore54]

TYSM

[smrtceo]

Excellent