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

Author Question: Using already existing groups for research implies that A) participants cannot be randomly ... (Read 115 times)

Yolanda

  • Hero Member
  • *****
  • Posts: 757
Using already existing groups for research implies that
 
  A) participants cannot be randomly assigned.
  B) the research project is doomed to fail.
  C) any comparisons made between the groups are meaningless.
  D) participants have already been randomly assigned.

Question 2

Two basic quasi-experimental designs mentioned in the text are
 
  A) the nonequivalent control-group design and the differential design.
  B) the repeated-measures design and the nonequivalent control-group design.
  C) the interrupted time-series design and the case-study design.
  D) the nonequivalent control-group design and the interrupted time-series design.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jossy

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

Answer: A

Answer to Question 2

Answer: D





 

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

For a complete list of videos, visit our video library