A _________________ is an important characteristic related tothe response variable which, when unaccounted for, may leadresearchers to false conclusions about cause and effect.
Question 2 options:
In a double-blind experiment conducted to study theeffectiveness of a new drug to relieve the common cold, aparticipant was given a sugar pill. After taking the pill, shefinds she can breathe more easily, and her condition substantiallyimproved. Which of the following describes this phenomenon?
Question 4 options:
Question 5 (1 point)
Statistics can be an āartā as different statisticians may usedifferent methods of analysis in answering questions pertaining toa study.
Question 5 options:
Question 6 (1 point)
Researchers want to test a new type of surgical procedure.Individuals are randomly placed in one of two groups. Tenindividuals receive the new surgery, while the other 10 individualsreceive the old surgery as a control. The participants do not knowwhich surgical procedure they receive. Researchers are aware ofwhich individuals are placed in each group. Which of the followingcharacteristics of a controlled experiment has not beensatisfied?
Question 6 options:
| A) | Comparison of treatment and control groups |
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Question 7 (1 point)
Which of the following would not necessarily be considered oneof the four principles of good practice in a controlledexperiment?
Question 7 options:
| A) | Make a comparison (treatment and control group) |
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| B) | Randomize the group membership of the subjects |
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| C) | Make sure to pull equally from younger and olderindividuals |
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| D) | Make the experiment blind |
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| E) | Make the experiment double-blind |
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