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
kogti [31]
3 years ago
13

In its January 25, 2012, issue, the Journal of the American Medical Association (JAMA) reported on the effects of overconsumptio

n of low, normal, and high protein diets on weight gain, energy expenditure, and body composition. Researchers conducted a single blind, randomized controlled trial of 25 U.S. adults. All subjects were admitted to the inpatient metabolic unit for the duration of the trial (10 to 12 weeks). The subjects were healthy, weight-stable, male and female volunteers, aged 18 to 35 years. All subjects consumed a weight-stabilizing diet for 13 to 25 days. Afterwards, the researchers randomly assigned participants to diets containing various percentages of energy from protein: 5% (low protein), 15% (normal protein), or 25% (high protein). The subjects were not aware of the specific protein level diet to which they were assigned. On these diets the researchers overfed the participants during the last 8 weeks of their 10 to 12 week stay in the inpatient metabolic unit. Which of the following is used in the design of this experiment?
a. observational study.
b. experiment.
Mathematics
1 answer:
Leviafan [203]3 years ago
6 0

Answer:

b. experiment

Step-by-step explanation:

An observational study is one in which the researchers monitor the effect of a risk factor on subjects without introducing interventions for the purpose of noting differences in results. An experiment is mainly a randomized control trial where subjects are assigned to groups and chosen by chance. Interventions are also introduced by the researchers so as to note the different possible results within the groups and among participants.

The above-described process incorporates an experiment and that is why the researchers introduce protein level diet as interventions. It also employs the random assignment of subjects to different groups so as to improve the accuracy of the process.

You might be interested in
I have a question that says " jada has read 3/5 of a book. She has read 75 pages so far. How many pages are in the whole book?"
jok3333 [9.3K]

Answer and Step-by-step explanation:

To solve, we would multiply by the reciprocal of the portion Jada has read, and multiply that number to 75.

The reciprocal means the the value, but flipped, so \frac{3}{5} will become \frac{5}{3}.

Now we do 75 times \frac{5}{3}/

\frac{75 * 5}{3} \\\\\\\\\frac{375}{3} \\\\\\\\125

So, there are 125 total pages in the book.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

3 0
3 years ago
When two numbers have a sum equal to ___ the numbers are additive inverses example of __ + -9 =0 and 18 + __ = 0
Aliun [14]

Answer: Zero; 9; -18

Step-by-step explanation:

An additive inverse always adds up to zero. 9 is the opposite of -9, and -18 is the opposite of 18

5 0
3 years ago
How do you write <br><br> 40/25<br> as a percentage?
rosijanka [135]
<span>What percent of 40 is 25? 
Let x = what percent 
of = multiplication 
is means = 
We now write it in math terms: 
x times 40 = 25 

40x = 25 
Divide both sides by 40 to find x. 
x = 25/40 
x = 0.625 
Change the decimal number 0.625 to a percent. 
x = 62.5%
</span>
6 0
3 years ago
HELPP PLSSS I NEED HELP!!!
tangare [24]

Answer:

(3+3) x (3+1)

Step-by-step explanation:

free

8 0
2 years ago
Read 2 more answers
A map has a scale of 1 cm : 20 km. Two cities are 2.5 cm apart on the map. To the nearest tenth of a kilometer, what is the actu
Pachacha [2.7K]

50 Km

1 cm → 20 Km

2.5 cm → 20 × 2.5 = 50 Km


6 0
3 years ago
Other questions:
  • All questions are about this system of equations:
    12·1 answer
  • What is the surface area of a square pyramid that has an 8 cm base length and triangular faces that are 14 cm tall? square centi
    11·2 answers
  • Line m passes through point (–2, –1) and is perpendicular to the graph of y = –23x + 6. Line n is parallel to line m and passes
    11·1 answer
  • which algebraic expression has a term with a coefficient of three A: -2y+5+3 B: 3(y-6) C: 3y+1 D: 5y-7
    12·2 answers
  • Helpp brainliest of rightt!!
    7·1 answer
  • The best unit of measure for the liquid in an eyedropper is the liter.<br> A. True<br> B. False
    7·2 answers
  • 1. write it on a piece of paper
    10·2 answers
  • GIVING BRAINLIEST!!!!!
    6·1 answer
  • HELP ME PLEADE I NEED THIS ( PLATOOOOOO)
    8·1 answer
  • In many cases the Law of Sines works perfectly well and returns the correct missing values in a non-right triangle. However, in
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!