1.3 - Controls
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Practice Questions
Test your understanding with targeted questions
Define a positive control.
💡 Hint: Think about what confirms results in an experiment.
What is a negative control?
💡 Hint: Consider what confirms no effect from the independent variable.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of a positive control in an experiment?
💡 Hint: Think about how it helps us understand our methods.
True or False: A negative control shows that a certain condition has no effect.
💡 Hint: What does it mean if there’s no effect observed?
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Create a comprehensive experimental plan involving both types of controls for assessing the effect of fertilizer on plant growth.
💡 Hint: Think about how to create a clear comparison and what conditions need to stay the same.
Analyze the potential ramifications of failing to implement both negative and positive controls when claiming the efficacy of a new treatment.
💡 Hint: Consider what controls validate in an experiment.
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