Automated Teller Machines

question 133

Multiple Choice

Automated teller machines

• A)are more costly to use than human tellers,so banks discourage their use by charging more for use of ATMs.
• B)cost about the same to use as human tellers in banks,so banks discourage their use by charging more for use of ATMs.
• C)cost less than human tellers,so banks may encourage their use by charging less for using ATMs.
• D)cost nothing to use,so banks provide their services free of charge.

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Definitions:

Independent Variables

In experimental research, variables that are manipulated or controlled by the researcher to study their effect on dependent variables.

Dependent Variable

The variable in experimental research that is expected to change as a result of manipulations to the independent variable.

Control Variable

A factor that is kept constant to accurately test the impact of an independent variable on a dependent variable in an experiment.

Placebo

A harmless substance with no therapeutic effect, used in controlled experiments to test the efficacy of treatments.