Question

Why aren't descriptive investigations repeatable?

Answer 1

Descriptive investigations are not repeatable because they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.

Answer 2

descriptive investigations involves questions but not hypothesis
so we are still seeking information by asking questions so its waste of time to repeat the question again and again because no hypothesis is formulated yet so they are not repeatable
hope it helps