Question

which of the following describes a reason for making a prediction when doing a controlled experiment? a. to identify a useful and reliable source of scientific information b. to prove that a hypothesis is true before it is tested in an experiment c. to anticipate the observations or measurements that will be made d. to learn what is already known about a specific research question

Answer 1

The answer is c. to anticipate the observations or measurements that will be made.

Controlled experiment is used parallel with experiment in which some alteration of the subject is induced. This is because this way can be compared in treated and non-treated subject. This way  the observations or measurements that will be made can be anticipated.

Answer 2

c. to anticipate the observations or measurements that will be made is correct.