Question

what do scientists use to test the cause - and - effect relationship in an experiment? (1 point)
hypothetical law and scientific theory
dependent variable and independent variable
background research and scientific question
scientific hypothesis and peer - reviewed inference

Explanation:

In an experiment, the independent variable is manipulated (the cause), and the dependent variable is measured (the effect). This relationship helps test cause - and - effect. A hypothetical law and scientific theory are broader concepts. Background research and scientific question are part of the experimental process but not for directly testing cause - effect. A scientific hypothesis is a prediction, and peer - reviewed inference is about validating results, not testing the core cause - effect relationship.

Answer:

B. dependent variable and independent variable