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Bill conducted an experiment to determine the effectiveness of a drug prevention program in high school.This group was compared to students at another high school that did not take part in the program.The students were given an exam before and after taking part in the program.As the students completed the posttest,many realized that it was the same test they took before the program and put in random answers,as teenagers would.This is a case of what invalidity problem?
Copyright Infringement
The violation of copyright laws by unauthorized reproduction, distribution, or use of copyrighted material.
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A person who brings a case against another in a court of law.
Collective Work
A work created by the integration of contributions from different authors who combine their efforts to produce a single, unified project.
Copyright
A legal right granted to the original creator of a work, which allows them to control its use, production, and distribution.
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