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Author Question: A researcher has designed a study looking at the effects of peer support on outcomes of coronary ... (Read 71 times)

MirandaLo

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A researcher has designed a study looking at the effects of peer support on outcomes of coronary artery bypass graft (CABG) patients.
 
  In designing the study, the researcher randomly assigns some patients to a group who will receive support from a recovered CABG patient and some patients to a group who receive no formal support from another CABG patient. This process would be an example of which of the following?
  a. Bias
  b. Manipulation
  c. Multicausality
  d. Probability

Question 2

In experimental research, the researcher's control of the treatment is referred to as:
 
  a. bias.
  b. manipulation.
  c. random selection.
  d. validity.



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meltdown117

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Answer to Question 1

ANS: B
Controlling the treatment or intervention is the most commonly used manipulation.
If the subjects are randomly assigned to the groups, there should be no bias.
Multicausality refers to several concepts or variables being investigated. A single causality, whether interaction with a former patient affects outcomes of CABG, is the focus.
Although the assignment to groups reflects probability, probability is not the process described. Probability looks at the likelihood that all subjects are likely to be represented in the sample.

Answer to Question 2

ANS: B
Controlling the treatment or intervention is the most commonly used manipulation.
Bias is when the researcher shows preference.
Random selection describes a process of ensuring that the sample is representative of the population under study.
Validity refers to the trueness of the tool; is it measuring what it says it measures.




MirandaLo

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Reply 2 on: Jul 8, 2018
:D TYSM


peter

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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