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 151 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
Great answer, keep it coming :)


TheNamesImani

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

For a complete list of videos, visit our video library