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Sagot :

Answer:

4.a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact

6.Control variables enhance the internal validity of a study by limiting the influence of confounding and other extraneous variables. This helps you establish a correlational or causal relationship between your variables of interest.

Explanation:

Answer:

4.a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact

6.Control variables enhance the internal validity of a study by limiting the influence of confounding and other extraneous variables. This helps you establish a correlational or causal relationship between your variables of interest.

Explanation: