Selecting and Recruiting Subjects Since Andrew Only Had 3 Days

question 36

Multiple Choice

Selecting and Recruiting Subjects Since Andrew only had 3 days to collect experimental data, he obtained a convenience sample of students eating lunch in the cafeteria.Nonprobability sampling worried him because of risk to his experiment's

• A)effect size.
• B)external validity.
• C)internal validity.
• D)statistical power.

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Definitions:

Hexane

A hydrocarbon with the chemical formula C6H14, used as a solvent in industrial applications, including the extraction of oils and fats.

Alkane Solvents

Organic solvents composed of alkanes, which are hydrocarbons containing only single bonds, making them non-polar and effective for dissolving similarly non-polar substances.

Electronegative

A measure of an atom's ability to attract and hold onto electrons when it forms bonds, affecting the polarity of chemical bonds.

Br

The chemical symbol for bromine, a halogen element with atomic number 35 that is a reddish-brown liquid at room temperature, used in various industrial applications.