A Researcher Is Preparing a Grant That Will Focus on Comparing

question 11

Multiple Choice

A researcher is preparing a grant that will focus on comparing mother's history of drug abuse (history vs. no history) and infant birth weight. The grant proposal requires a sample size calculation for testing the difference between the two groups. In order to calculate the sample size, the researcher needs the following three items:

• A) Power, type 1 error rate, and effect size.
• B) Confidence interval and power.
• C) p-value, power, and effect size.
• D) Sample size is not needed.

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Definitions:

Chemotherapy

A type of cancer treatment using one or more anti-cancer drugs as part of a standardized chemotherapy regimen.

Metric System

A decimal system of measurement based on the meter, liter, and kilogram as units of length, capacity, and mass, respectively.

Liter

A metric unit of volume equal to 1,000 cubic centimeters or approximately 0.264 gallons.

Apothecary System

An older system of measurement that includes units such as fluid ounces, fluid drams, pints, and quarts.