Comparing the experimental method with the quasi-experimental method

Comparing the experimental method with the quasi-experimental method
 
  a. The experimental method has a higher degree of internal validity.
  b. The experimental method has a higher degree of external validity
  c. The experimental method is the only one in which the IV is manipulated.
  d. All of these.

Question 2

Indicate the tabled value at the .01 level.
 
  What will be an ideal response?

Question 3

Should Ho be rejected?.
 
  What will be an ideal response?

Question 4

The point at which the regression line crosses the Y-axis, also known as the Y-intercept, is symbolized by _____.
 
  a. m
  b. b
  c. X
  d. a