Question

why does an experimental control help scientists establish credible results? (1 point)
it helps in comparing the data.
it helps to generate a hypothesis.
it helps to see an observation.
it helps to form a research question.

Explanation:

An experimental control is a baseline group that does not receive the treatment or intervention being tested. By having this control group, scientists can compare the data from the experimental group (which receives the treatment) to the control group. This comparison allows them to determine if the treatment has a significant effect. For example, in a drug - testing experiment, the control group might receive a placebo. By comparing the health outcomes of the experimental (drug - receiving) group and the control (placebo - receiving) group, scientists can establish if the drug is effective. The control group helps in isolating the variable being tested and provides a standard for comparison, which is crucial for establishing credible results.

Answer:

It helps in comparing the data.