Which of These Is Not Necessarily a Step EMS Providers

question 17

Multiple Choice

Which of these is not necessarily a step EMS providers should take when conducting a research study?

• A) Implement a cohort study model.
• B) Determine how to obtain informed consent from study subjects.
• C) Prepare a null hypothesis and research hypothesis.
• D) Define the population to be studied.

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Definitions:

Simple Random Sample

A portion of a statistical population where every member in that portion is equally likely to be selected.

Mean Difference

The average difference between two sets of data. It is commonly used in comparisons of before and after measurements or between experimental and control groups.

Standard Deviation

An assessment of the range of variation or dispersion present in a set of numeric values, demonstrating how spread out the values are in relation to the average.

Mean

The arithmetic average of a set of values, calculated by summing all the values and then dividing by the total number of values.