A Researcher May Not Be Able to Change the Effect

question 26

Multiple Choice

A researcher may not be able to change the effect size of a planned study to increase power. Another aspect of a planned study that the researcher can usually change to increase power is:

• A)the sample size
• B)the beta level
• C)the population parameters
• D)the sample mean

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Definitions:

Performance

In contract law, it refers to the act of doing what is required by a contract.

Novation

The act of replacing an original party in a contract with a new party, with the consent of all involved, effectively creating a new contract.

Previous Valid Obligation

A duty or commitment that has been legally recognized and must be fulfilled as previously agreed or contracted.

Novation

The act of replacing an old obligation with a new one, thereby extinguishing the original obligation.