John Is a Soccer Player Who Used to Be a Mechanic.Aside

question 107

Multiple Choice

John is a soccer player who used to be a mechanic.Aside from the money,he enjoys both jobs equally.He earned $30,000 as a mechanic,and now he earns $250,000 as a soccer player.If John is a soccer player,which of the following statements is correct?

• A) Total earnings = $280,000;Economic rent = $250,000;Opportunity cost = $30,000
• B) Total earnings = $280,000;Economic rent = $30,000;Opportunity cost = $220,000
• C) Total earnings = $250,000;Economic rent = $250,000;Opportunity cost = $0
• D) Total earnings = $250,000;Economic rent = $280,000;Opportunity cost = $30,000
• E) Total earnings = $250,000;Economic rent = $220,000;Opportunity cost = $30,000

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Definitions:

Quasi-Experimental Design

A research method that attempts to establish cause-and-effect relationships but does not utilize random assignment to control groups.

Random Assignment

A method used in experiments that allocates participants to different groups purely by chance, reducing bias.

Matched Groups

This involves forming groups in a study that are similar on certain characteristics to ensure comparability when exploring the effects of an intervention.

Non-Experimental Design

A research format that lacks the manipulation of independent variables or random assignment of participants to groups.