1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Musya8 [376]
3 years ago
9

A screening test is used in the same way in two similar populations, but the proportion of false-positive results among those wh

o test positive in population a is higher than that among those who test positive in population
b. what is the likely explanation for this finding?
Biology
1 answer:
Llana [10]3 years ago
5 0
The great/best answer is d. By definition the proportion of false-positive results among those who test positive is 1 minus the positive predictive value. If this number is lower in population A, then population A has a higher positive predictive value. As the disease prevalence increases, the positive predictive value increases. Population A has a higher positive predictive value; therefore, the disease must be more prevalent in population A.
<span>Answer a is not correct since adequate information is provided to infer the explanation for the finding. Answers b and e are incorrect since specificity is a characteristic of a test and does not change when the test is applied to different populations with varying disease prevalence. Answer c is incorrect since the prevalence of disease must be higher in population A as the positive predictive value is higher in population A</span>
You might be interested in
Researchers notice that animal populations in a wildlife preserve have been decreasing. Which step should the researchers perfor
alexandr1967 [171]

Answer:

Check the areas that need excessive maintenance

Explanation:

7 0
2 years ago
Sociologically, "gender" and "sex" are interchangeable terms that have virtually the same meaning true or false
kozerog [31]

Answer:      

False.

Explanation:

4 0
3 years ago
Read 2 more answers
The body determines whether certain genes should be expressed or not. Sometimes genes are only turned on once or twice in a life
zmey [24]

The gene which is produced once or twice in a lifetime is the milk producing hormone after childbirth. This is because it is produced only after the birth of the child. The growth of the mammary glands takes place during pregnancy. The breast continue to increase in size after giving birth to a child. After delivery only copious milk is produced which is generally done with the help of milk hormone. During pregnancy the secretion of the milk is inhibited by the estrogen and progesterone which circulates in the blood stream which in turn inhibits the release of prolactin from the pituitary gland thus making the mammary glands unresponsive. Where as insulin is a hormone which helps the body to utilise the sugar or glucose from different sources like carbohydrates that we get while we eat food and adrenaline is secreted when we are scared or when we feel that we are in danger. Therefore, milk producing hormone is the gene that are turned once or twice in a lifetime.

8 0
3 years ago
Read 2 more answers
What are the functions of the larynx and how does it carry out them on a daily basis?
MArishka [77]
The larynx is an nicknamed the "voice box" because it holds the vocal cords inside. It helps change the pitch and volume of our voices as we speak. It is the only part of the body capable of doing this job, so we don't ever want it removed. Our voices would be much more monotone sounding. The larynx connects the pharynx to the trachea in the neck. It is also capable of allowing air through for us to breathe, but does not let anything (food or drink) block the airway. This is obviously a daily function since we eat and drink numerous times daily and usually have no problems breathing while eating and drinking. This is thanks to the larynx.

Hope this helps! :)
4 0
3 years ago
Plagiarism Global plagiarism Incremental plagiarism Patchwork plagiarism A. using bits and pieces of other sources and passing i
nikklg [1K]

Explanation:

1. Using bits and pieces of other sources and passing it off as one’s own work

Patchwork plagiarism

In patchwork plagiarism, an author uses bits from other people's works and pass it off as their own.

2. Passing off another person’s work as one’s own

Plagiarism

The act of passing off another person's work as one's own is called plagiarism. It is a very serious offence

3. Passing off the entire work of another person as one’s own

Global plagiarism

Global plagiarism is the complete passing off of another person's own.

4. When most of the work is one’s own, but uncited sources are used

Incremental plagiarism

Here an author fails to cite the sources where he/she obtains information from.

Learn more:

Plagiarism brainly.com/question/2623994

#learnwithBrainly

7 0
4 years ago
Other questions:
  • summerize what happens in phase 1 and 2 of photosynthesis and describe where each phase occurs in the chloroplast.
    12·1 answer
  • A doctor is exploring some tissue with a blunt probe. She notices that the tissue is white and fatty and seems to be concentrate
    15·2 answers
  • Which of the following correctly explains how some bacterial infections can become difficult to treat with antibiotics?
    6·1 answer
  • Which of the following statements accurately describes the process of dating Earth's history?
    11·2 answers
  • Why do telomeres get shorter each time a cell divides
    8·1 answer
  • Chemical found in the nucleus that controls the production of protein
    10·1 answer
  • Which of the following statements about hemoglobin is TRUE?
    11·2 answers
  • I need help i’ll mark brainlyist.
    7·1 answer
  • Intelligence is not controlled by a single gene, but by several genes. This is known as
    15·2 answers
  • How is iodion strach test carried out ? describe with figure ​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!