Which of the four designs gives us the best opportunity to ...

[shofmannx20]

Which of the four designs gives us the best opportunity to support a cause-and-effect
  conclusion?
 
  A) A-B design B) A-B-B-A design
  C) A-B-A-B design D) A-B-A design

Question 2

The fact that the tails of a distribution never actually touch the baseline, but extend into infinity,
  indicates that the probability level for a statistical test
 
  A) will never equal 1.00 B) will never equal 0.00
  C) is difficult to interpret D) is not as accurate as needed

[atrochim]

Answer to Question 1

C

Answer to Question 2

B

[shofmannx20]

Gracias!

[Viet Thy]

TYSM