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

Author Question: How should the control group be selected? a) Control group should enroll in treatment for the ... (Read 72 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
on: Jun 22, 2018
How should the control group be selected?
 
  a) Control group should enroll in treatment for the characteristic of interest.
  b) Control group should vary randomly on the characteristic of interest.
  c) Control group should allow the investigator to isolate the characteristic of interest.
  d) Control group should allow the investigator to statistically control for the characteristic of interest.

Question 2

How might the selection of groups in observational studies affect the construct validity of the study?
 
  a) Populations sampled from might be too general.
  b) Populations sampled from might not be representative.
  c) Subjects' status on the characteristic of interest might vary systematically.
  d) Subjects might show random variation on other characteristics of interest.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joechoochoy

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Jun 22, 2018
Answer to Question 1

Correct Answer: c

Answer to Question 2

Correct Answer: b


ss2343

  • Member
  • Posts: 548
Reply 2 on: Jun 22, 2018
Gracias!

milbourne11

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Selected Miscellaneous Antibacterials Selected Miscellaneous Antibacterials
Selected Natural Products Selected Natural Products
A gasoline direct-injection (GDI) fuel rail and pump assembly with the electric pressure control ... A gasoline direct-injection (GDI) fuel rail and pump assembly with the electric pressure control ...
Visual tracking of a pendulum by a normal control subject (top) and three schizophrenics. (Adapted ... Visual tracking of a pendulum by a normal control subject (top) and three schizophrenics. (Adapted ...
Dental Related Adverse Effects in Patients Undergoing Cancer Treatment Dental Related Adverse Effects in Patients Undergoing Cancer Treatment
The major human endocrine glands and their central nervous system control centers The major human endocrine glands and their central nervous system control centers
Video: Pasteur's Experiment

For a complete list of videos, visit our video library