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

Author Question: The precision limits of a method are defined by: a. The mean b. The SD c. Sensitivity d. ... (Read 57 times)

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
on: Jun 25, 2018
The precision limits of a method are defined by:
 
  a. The mean
  b. The SD
  c. Sensitivity
  d. Specificity

Question 2

Which of the following would most likely be associated with the situation described in Question 11?
 
  a. Operator error
  b. Fading light source
  c. Instrument miscalibrated
  d. Starting a new lot number of thromboplastin reagent


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

maya.nigrin17@yahoo.com

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: B
Evaluating the same specimen multiple times and applying statistics to the results determine precision or reproducibility. The SD describes the precision. The mean is the average result (assuming a gaussian distribution). Sensitivity describes how well a test identifies positive patients, whereas specificity is how well it identifies only positive patients.

Answer to Question 2

ANS: D
Shifts can occur when a new reagent is introduced. A fading light source would lead to trend error. If the instrument were calibrated incorrectly, then both controls should be out; likewise, operator error would result in both controls being unacceptable.


LCritchfi

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jun 25, 2018
Thank you :)


maya.nigrin17@yahoo.com

  • Sr. Member
  • ****
  • Posts: 324
Reply #3 on: Jun 25, 2018
Happy to help you


« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

The twin method can be used to investigate genetic and environmental influences on the development o The twin method can be used to investigate genetic and environmental influences on the development o
Derive the following using the increment/delta method and find its slope Derive the following using the increment/delta method and find its slope
The forked-line method for determining gamete genotype frequency The forked-line method for determining gamete genotype frequency
Power Grip and Precision Grip Power Grip and Precision Grip
Plot of Land (Modified Offset Method) - Offset lines Plot of Land (Modified Offset Method) - Offset lines
Hermann Muller and the Drosophila ClB Chromosome Method Hermann Muller and the Drosophila ClB Chromosome Method
Video: Factors that increase metabolic rate and heat production

For a complete list of videos, visit our video library