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
Mila [183]
3 years ago
14

Which of the following is an example of an ABAB design? Half of the subjects receive one treatment and the other half are not tr

eated. All subjects received one of two treatments. A subject is observed and treated. A subject is observed both before and after two exposures to the treatment.
Biology
1 answer:
Karolina [17]3 years ago
4 0

Answer:

Option D, A subject is observed both before and after two exposures to the treatment.

Explanation:

In A-B-A-B design the alphabets have following meaning

a) First A – It is the baseline value or the value measured before treatment

b) First B – It is the treatment measurement

c) Second A  - It is the withdrawal of treatment  

d) Second B – It is the reintroduction of treatment  

The second A is known as the reversal phase in which the intervention is withdrawn to see if the target behavior returns to the baseline behaviour

Thus , there are two measurements involved one before the intervention and second after the intervention

Option D is correct

You might be interested in
How does the weather caused by a warm front compare to the weather caused by a cold front
Harlamova29_29 [7]
Warm fronts cause snow flurries in the winter, while cold fronts cause several days of rainy weather. Warm fronts cause rapid changes in weather, while cold fronts cause several days of cloudy weather. Warm fronts cause thunderstorms in the summer, while cold fronts cause rain when the air is humid.
8 0
3 years ago
Read 2 more answers
What are the three parts of chargaff's rule?​
Yanka [14]

Answer:

(A is adenine, T is thymine, G is guanine, and C is cytosine.)

Explanation:

7 0
3 years ago
1. If a pea plant’s alleles for height are tt, what is true of its parents?
omeli [17]
1. C) Both parents contributed a recessive allele
The offspring is homozygous for the recessive allele, which means it has two copies of it. Because each parent contributes one copy of the gene, this means that both parents contributed the recessive allele.

2. D) The offspring can be tall or short

The first cross between TT and tt will yield an F1 generation with the genotype Tt. When this generation is self-pollinated, the cross may result in the following genotypes:
TT, Tt, tt
Which means that the offspring can be tall or short.
4 0
3 years ago
Which of the following is true regarding the relationship between ODD and CD? ​ A) CD is almost always preceded by ODD. B) ​Most
creativ13 [48]

Answer:

Option B

Explanation:

ODD means Oppositional Defiant Disorder while CD means Conduct disorder.

Without initial presence of defiant disorder symptoms, Oppositional defiant disorder are not precursor to the development of conduct disorder.

Oppositional Defiant Disorder and Conduct Disorder are much more predominant in boys than in girls.

According to reseaches carried out,to boys, Oppositional Defiant disorder is a precursor to conduct disorder.

6 0
3 years ago
Oxygen unloading occurs at the _________________________ This process causes a(n) _________________ in the oxygen partial pressu
Papessa [141]
<span>The answer to this question would be: tissues; decrease

Oxygen is delivered to the tissue by the heart. It will be unloaded in the tissue, causing the oxygen level in the blood to be decreased. After that, the blood also picks up the carbon dioxide so its level will be increased. 
In lungs, the carbon dioxide will be unloaded and oxygen will be loaded back into the blood.</span>
7 0
3 years ago
Other questions:
  • Once the mRNA is built, what is removed?
    8·1 answer
  • Number of offspring produced over a period of time​
    7·1 answer
  • In those parts of equatorial Africa where the malaria parasite is most common, the sickle-cell allele constitutes 20% of the β h
    10·1 answer
  • 7. Which type of transport below moves water through a selectively-permeable membrane from areas of greater concentration to are
    11·1 answer
  • the movement of molten iron in earths core makes the planet act like a giant bar ______________, with one pole near the top of t
    11·1 answer
  • The immune systems __________ line of defense against infectious diseases includes the skin
    7·1 answer
  • Which biomolecule contains fats, oils, and waxes?
    10·2 answers
  • Identify the two main processes through which carbon is cycled between the
    8·1 answer
  • if environmental conditions change over time it’s most likely a population of organisms in the environment will survive if...
    9·1 answer
  • If you cured one cancer, would you be able to cure them all? Explain why or why not?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!