Astudy was conducted to test the effectiveness of seeing eye dogs. people with different ranges of vision loss were included in the study. which question would in determining whether the conclusion above is valid?

a.
what was the average age of the people in the study?
b. what was the most common occupation of people in the study?
c. how many people in the study had a pet?
d. how many people in the study had hearing problems?

The correct answer will be option-B.

Explanation:

In the given study, the people were selected with different ranges of vision loss to study the effectiveness of seeing by looking at the dogs of an eye.

These persons showed variance in their ability to see as the vision depends on the age along with occupation they were in or they are in.  The strongest factor that influences the ability to see was the occupation which leads to different ranges of vision.

Thus, Option-B is the correct answer.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.