A Researcher Who Selects a Sample of People of Varying

question 71

Multiple Choice

A researcher who selects a sample of people of varying ages and studies them at one point in time is, by definition, using the ________ method.

• A) biographical study
• B) correlational
• C) longitudinal
• D) cross-sectional

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Definitions:

Ion

An atom with either an excess or a deficiency of electrons in the valence; a negatively or positively charged particle.

Surplus of Electrons

A condition where there are more electrons than protons in a system, leading to a negative charge.

Ohmmeter

An instrument for measuring electrical resistance in ohms, used in diagnosing and troubleshooting electrical problems.

Electrical Circuit

A pathway formed by conducting materials through which electric current flows.