Question

Which of these actions might help to reduce bias in a scientific investigation?

A. telling the person before the investigation to report only significant observations

B.the person doing the investigation recording all conditions before, during, and after the investigation
C.
telling the person before the investigation what outcome to expect
D.
asking the person before the investigation what outcome they expect

Answer 1

The person doing the investigation recording all conditions before, during, and after the investigation.

Step-by-step explanation:

Answer 2

i honestly think it would be a