Question

multiple choice question
experiments are useful because ______.
○ they allow researchers to manipulate variables
○ sociologists know exactly what the outcomes will be
○ they tend to attract significant external funding
○ they cause increased productivity within the control group and the experimental group
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Explanation:

Experiments are a core research method that lets researchers intentionally change independent variables while controlling others, to test causal relationships. The other options are incorrect: sociologists cannot predict exact outcomes, funding is not a core utility of experiments, and experiments do not inherently boost productivity in groups.

Answer:

they allow researchers to manipulate variables