Author Question: By pretesting the two groups on the dependent variable in a randomized, pretest-posttest, ... (Read 51 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
By pretesting the two groups on the dependent variable in a randomized, pretest-posttest, control-group design, we
 
  A) rule out variance on all variables of all groups.
  B) test for initial equivalence on the dependent variable.
  C) eliminate confounding.
  D) None of the above.

Question 2

The randomized pretest-posttest, control-group design is an improvement over the randomized posttest-only, control-group design because
 
  A) the former adds an additional control group.
  B) the latter employs randomization only at the time of the posttest.
  C) the former adds a pretreatment measurement of the independent variable.
  D) the former adds a pretreatment measurement of the dependent variable.



alexisweber49

  • Sr. Member
  • ****
  • Posts: 311
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

For a complete list of videos, visit our video library