This topic contains a solution. Click here to go to the answer

Author Question: Which of the following threats to internal validity are not controlled by the pretest-posttest ... (Read 65 times)

NguyenJ

  • Hero Member
  • *****
  • Posts: 516
Which of the following threats to internal validity are not controlled by the pretest-posttest
  control-group design?
 
  A) statistical regression B) history
  C) maturation D) instrumentation

Question 2

Your advisor has completed a one-way ANOVA on data from her latest experiment and asks
  you to interpret the results. What should you evaluate to best determine the results?
 
  A) mean scores on the DV for each group
  B) the ANOVA line graph
  C) variance for each group and the degrees of freedom
  D) the ANOVA source table



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

manuelcastillo

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

D

Answer to Question 2

D




NguyenJ

  • Member
  • Posts: 516
Reply 2 on: Jun 20, 2018
Gracias!


6ana001

  • Member
  • Posts: 311
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

For a complete list of videos, visit our video library