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

Author Question: Using a pretest-posttest, nonequivalent control group design, Professor Moriarty takes a group of ... (Read 145 times)

nevelica

  • Hero Member
  • *****
  • Posts: 563
Using a pretest-posttest, nonequivalent control group design, Professor Moriarty takes a group of subjects who received the lowest scores on the pretest and, one day later, runs them through a program that, he believes,
 
  will help the subjects improve their scores. One week later, when the study is finished, Professor Moriarty finds that, indeed, the scores have improved with these subjects. What type of confound does he need to consider in this case?
 
   a. Maturation
   b. Interviewer bias
   c. Regression to the mean
   d. Experimenter bias

Question 2

In an interrupted time-series design, the interrupted aspect refers to when then researcher
 
  a. rudely disrupts the participants, which raises some ethical issues in the study.
  b. takes the study to the real world, where an interruption in the environment occurs.
  c. abruptly calls off the study and sends the subjects home without compensation.
  d. inserts a manipulation or event in between the pretest and posttest.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

medine

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

c

Answer to Question 2

d




nevelica

  • Member
  • Posts: 563
Reply 2 on: Jun 20, 2018
:D TYSM


ktidd

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Excellent

 

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

For a complete list of videos, visit our video library