-Rick's Income Is $54 a Week and He Spends All

question 10

Multiple Choice

-Rick's income is $54 a week and he spends all of it on CDs and sandwiches. The price of a CD is $18 and the price of a sandwich is $3. The figure above illustrates Rick's preferences. If the price of a CD falls to $6, Rick's consumption of sandwiches will

• A) increase by 4 sandwiches per week.
• B) increase by 2 sandwiches per week.
• C) not change.
• D) decrease by 2 sandwiches per week.

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Definitions:

Matched Pairs Design

A method of assigning subjects to groups in which pairs of subjects are first matched on some characteristic and then individually assigned randomly to groups.

Matching Variable

A characteristic used to ensure that members of different groups in a study are similar on that particular attribute.

Dependent Variable

The variable in an experiment that is observed and measured, expected to change as a result of alterations to the independent variable.

Matched Pairs Design

A research design in experimental psychology where participants are paired based on specific characteristics, with one member of each pair assigned to the experimental group and the other to the control group.