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
grigory [225]
3 years ago
15

A nutrition scientist designs a study in which he assigns 100 people to the treatment group and 100 people to the control group.

Although the scientist knows each person's group assignment, the subjects are not aware of their group placement. This is an example of _________.a. double-blind study
b. uncontrolled study
c. single-blind study
d. biased study
Biology
2 answers:
borishaifa [10]3 years ago
7 0

Answer: Single blind study

Explanation:

There are various types of terms and conditions on which the clinical trial is based. There the condition is single blind study.

The experimenter is the person performing the experiment on the participants.

In this condition the participants have no idea about the treatment but the experimenter performing the experiment is aware of the treatment or medicine which is given to the participants.

yKpoI14uk [10]3 years ago
5 0

Answer:

Option C, single-blind study

Explanation:

In a single blind study, the researcher is aware of the experimental group in which the subject is placed. However, the subject is unaware of its placement. Such kinds of experiments are conducted to reduce the risk of errors or variation in participant’s response, if they come to know the group type in which they are placed.  

In a double blind study both the researcher and the subject of the experiment are unaware of the groups in which the subject is placed while conducting the experiment

Hence, option C is correct

You might be interested in
Which mutation is an example of an insertion mutation?
Burka [1]

Answer:

d. AAU CCG CAU UGG A​

Explanation:

A mutation is any change or alteration to the sequence of a gene. There are, however, different types of mutation depending on how it occurs in the gene. One of these types is INSERTION MUTATION as mentioned in this question. Insertion mutation is a type of mutation in which one or more nucleotide base is added to the sequence, hence, changing the reading frame of the original sequence.

In this question, the original mRNA sequence is given as: AAU CCG CAU GGA.

An insertion mutation will cause nucleotide base(s) to be added to this sequence, which will be noticed by an increase in number of bases in the sequence.

The correct answer is: AAU CCG CAU UGG A​. In this mutated sequence, nucleotide "U" has been added to the sequence.

8 0
3 years ago
Choose the statement that best describes the Americans who served in Vietnam.
tatyana61 [14]
The statement that best describes the Americans who served in the Vietnam war was most of the US soldiers were all young, working class volunteers. The correct answer is D. 
8 0
3 years ago
One advantage of a pressurized water reactor is the separation of water that is near radioactive material and the water that is
mel-nik [20]

True:

Advantages. PWR reactors are verystable due to their tendency toproduce less power as temperatures increase; this makes the reactor easier to operate from a stability standpoint. PWR turbine cycle loop is separate from the primary loop, so the water in the secondary loop is not contaminated by radioactive materials.

3 0
3 years ago
Read 2 more answers
A fox's diet can contain bettles, eggs, berries, fish, and mice. What kind of consumer is a fox?
lutik1710 [3]

A fox is a Tertiary Consumer!

8 0
3 years ago
Read 2 more answers
An ecosystem has experienced a flood. Which type of plants would u expect to see growing first after the flood? Shrubs, lichen,
Crank
I believe the answer is <span>small annual plants
</span>

<span>Small annual plants will easily grow after a flood since it was small and rapidly growing. They also died fast, which makes them reproduce quickly. If the condition is harsh with less soil, l</span>ichen will be the most easier to survive. Pine and oak are strong trees that will be formed last.
6 0
3 years ago
Read 2 more answers
Other questions:
  • The length of lines 1, 2, and 3 is the same. Each line has the same number of dots, so your finger moved along each line in the
    9·2 answers
  • Evolution can occur at different rates, however, for evolution to occur, there must be?
    8·1 answer
  • The transmission of genetic information from parent to offspring is called _______. A. heredity B. homeostasis C. cellular organ
    9·1 answer
  • What are the importance of planting and propagating trees and fruit bearing trees?​
    12·2 answers
  • The reaction that releases energy for use by the cell occurs in which site?
    13·1 answer
  • What's a success you have had this week?
    6·2 answers
  • Anything that elicits an immune response is called a
    15·1 answer
  • Based on fossil data, the researcher estimates that humans and their most closely related species in the data set diverged appro
    11·1 answer
  • PLEASE HELP!!<br> Which statement describes how nuclear fusion and nuclear fission differ?
    9·1 answer
  • One afternoon, there was heavy rainfall, and many large puddles formed on Rachel's street. A few days later, Rachel noticed the
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!