Which Change in the Sample Selection Procedure of a Study

question 17

Multiple Choice

Which change in the sample selection procedure of a study involving continuous handrail support, oxygen uptake, and heart rate in women during submaximal step treadmill exercise would have the greatest impact on increasing the generalizability of the results?

• A) Increasing the sample size
• B) Including subjects who smoke in the study
• C) Having a true control group rather than having subjects serve as their own controls
• D) Expanding the sample population to include equal numbers of women who were moderately fit and highly fit

---

Definitions:

Net Cash Flows

The variance between the amount of money entering and leaving a business over a set timeframe.

Desired Rate

Typically refers to an interest rate or return rate that an investor or entity aims to achieve on an investment or project.

Capital Investment

Funds invested in a firm or enterprise for the purpose of furthering its business objectives, including acquiring fixed assets.

Net Present Value

Net present value is a financial metric that calculates the difference between the present value of cash inflows and outflows over a period of time, used to assess the profitability of investments.