Confounding occurs when an uncontrolled factor covaries or ...

[DelorasTo]

Confounding occurs when an uncontrolled factor covaries or changes together with an independent variable.
 
  Indicate whether the statement is true or false

Question 2

In a pretest-posttest design, a researcher makes multiple observations before and after the introduction of a treatment.
 
  a. True
  b. False
  Indicate whether the statement is true or false

[Jayson]

Answer to Question 1

T

Answer to Question 2

False

[DelorasTo]

Thanks for the timely response, appreciate it

[isabelt_18]

Great answer, keep it coming