This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If a one-group pretest-posttest study uses subjects as their own controls, which is the study ... (Read 51 times)

Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
on: Jul 8, 2018
If a one-group pretest-posttest study uses subjects as their own controls, which is the study design?
 
  a. Experimental
  b. Quasi-experimental
  c. Correlational
  d. Descriptive

Question 2

Nurses who give discharge teaching to patients after colonoscopy call these patients the day after the procedure to check on their status.
 
  At that time, patients who have had polyps removed invariably ask how long it will be until they receive their results. The nurses decide to design a study in which they will change their discharge teaching, in order to include information about the timeframe for biopsy results, and measure the results, comparing them with the results for the next month, before the change. Which of the following types of research will they use?
  a. Correlational
  b. Quasi-experimental
  c. Experimental
  d. Descriptive


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cam1229

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 8, 2018
Answer to Question 1

ANS: B
Quasi-experimental and experimental designs examine causality. Quasi-experimental study designs were developed to provide alternative means of examining causality in situations not conducive to experimental controls.

Answer to Question 2

ANS: B
The intent of the study is to examine the effect of an intervention; thus, only quasi-experimental or experimental designs are appropriate. Quasi-experimental and experimental designs examine causality. The power of the design to accomplish this purpose depends on the extent to which the actual effects of the experimental treatment (the independent variable) can be detected by measuring the dependent variable. Because data collection will not occur simultaneously in both groups, the study cannot use random assignment to group, which means that it is quasi-experimental, not experimental. The posttest-only design with comparison group is the specific study design here. With a posttest-only design with comparison group, selection threat is a problem. The lack of a pretest would ordinarily be a serious impediment to defining change, but because very few subjects will know the timeline for receipt of biopsy results, this objection is of little concern.


Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
Reply #2 on: Jul 8, 2018
Thank you


cam1229

  • Sr. Member
  • ****
  • Posts: 329
Reply #3 on: Jul 8, 2018
No problemo


« previous next »
 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Flipper tags have been extensively used in the study of penguin population dynamics. Flipper tags have been extensively used in the study of penguin population dynamics.
The size of the antlers play a significant role in establishing the hierarchy in the group The size of the antlers play a significant role in establishing the hierarchy in the group
Scientists (group photo) Scientists (group photo)
The areas in which reading-associated increases in activity were observed in the fMRI study of ... The areas in which reading-associated increases in activity were observed in the fMRI study of ...
Your Brain Controls Hunger and Satiation Your Brain Controls Hunger and Satiation
Pathway by which the nervous system controls skeletal muscle contraction Pathway by which the nervous system controls skeletal muscle contraction
Video: Brief Summary on Photosynthesis - Animation

For a complete list of videos, visit our video library