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

Author Question: Explain how the natural variability in the population can affect a test's ability to detect a ... (Read 55 times)

acc299

  • Hero Member
  • *****
  • Posts: 569
on: Jul 24, 2018
Explain how the natural variability in the population can affect a test's ability to detect a difference or relationship in the population that actually does exist.

Question 2

What is the statistical reason that small samples result in a harder time detecting real relationships or differences in the population than large samples? (Assume data quality is not an issue.)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

parshano

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 24, 2018
Answer to Question 1

THE MORE NATURAL VARIABILITY THERE IS IN A POPULATION, THE HARDER IT IS FOR A TEST TO DETECT A DIFFERENCE OR RELATIONSHIP THAT EXISTS.

Answer to Question 2

SMALL SAMPLES HAVE MORE VARIABILITY FROM SAMPLE TO SAMPLE, MAKING IT HARDER FOR THE TEST TO RULE OUT CHANCE AS THE EXPLANATION FOR THE RELATIONSHIP OR DIFFERENCE.


acc299

  • Member
  • Posts: 569
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

rachel

  • Member
  • Posts: 323
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Evaluation of a child for cystic fibrosis with a sweat chloride test. Sweat is being collected under Evaluation of a child for cystic fibrosis with a sweat chloride test. Sweat is being collected under
Digital rectal exam (DRE). The physician’s index finger is inserted into the rectum and pressed agai Digital rectal exam (DRE). The physician’s index finger is inserted into the rectum and pressed agai
Performing a Spirometry Test to Measure Forced Vital Capacity Performing a Spirometry Test to Measure Forced Vital Capacity
Human salivary alpha amylase test. Human salivary alpha amylase test.
Population Distribution Population Distribution
Blood pressure test Blood pressure test
Video: Pores and Ion Channels

For a complete list of videos, visit our video library