Author Question: Suppose a researcher randomly samples 20 people who do not have celiac disease, but have chosen to ... (Read 101 times)

sammy

  • Hero Member
  • *****
  • Posts: 818
Suppose a researcher randomly samples 20 people who do not have celiac disease, but have chosen to stop eating gluten. The researcher obtains ratings (on a 1 to 5 scale) of overall well-being before each person stopped eating gluten, and obtains the same rating two months after each person stopped eating gluten. The researcher wants to test whether the ratings change before and after a two-month period of gluten-free eating. The data the researcher obtains can best be described as:
 A. Independent
  B. Paired
  C. Qualitative

Question 2

Why does the video say you should be tested before giving up gluten completely?
 A. Gluten is a necessary nutrient.
  B. If you don't have celiac disease, eating gluten-free will not help you.
  C. You might be allergic to gluten-free products.
  D. The symptoms you are trying to resolve by not eating gluten might be due to another cause.



irishcancer18

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

B. Paired

FEEDBACK:
The data for the study described here can be described as paired, matched or dependent. The variable of interest, the rating of overall well-being, is measured twice in a before and after scenario. The two ratings for each person are paired to or matched with each other because they come from the same person. Likewise, because the two ratings come from the same person, they are not independent, meaning they are dependent.

Answer to Question 2

D.The symptoms you are trying to resolve by not eating gluten might be due to another cause.

FEEDBACK:
The video says you should be tested first to rule out other possible causes for your symptoms.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

For a complete list of videos, visit our video library