A Researcher Wanted to Test the Study-Time Hypothesis

question 60

Multiple Choice

A researcher wanted to test the study-time hypothesis. She randomly assigned 30 students to study a passage for 10 minutes and another 30 students to study for 20 minutes, and then had all of the students answer 10 multiple-choice questions to test their memory of the passage. She tested all participants in her quiet laboratory. The independent variable is the:

• A) number of questions answered correctly.
• B) amount of time for study.
• C) quiet conditions in the laboratory.
• D) number of participants.

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Definitions:

Conviction

A firmly held belief or opinion, or the process of being declared legally guilty of an offense by the verdict of a jury or the decision of a judge.

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A notorious crime family based in New York, well-known for their involvement in organized crime activities.

Informant

An informant is a person who provides confidential information or intelligence, especially to the police or other authority.

Physical Change

A change in which the form of matter is altered but one substance is not transformed into another.