Question

1. the scientist reviewed the data to confirm the ______ of the results. *

a. perspective
b. sustain
c. controversy
d. validity

Explanation:

To solve this, we analyze each option:

• Option A: "perspective" means a point of view, which doesn't fit the context of confirming something about results from data review.
• Option B: "sustain" is a verb, but the blank needs a noun, so it's grammatically incorrect.
• Option C: "controversy" refers to a disagreement, which is not what a scientist would confirm from data review (they aim for validity, not controversy).
• Option D: "validity" refers to the quality of being logically or factually sound. A scientist reviewing data to confirm the validity of results makes sense, as they check if results are accurate and reliable.

Answer:

D. validity