1.5 - Validity
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Practice Questions
Test your understanding with targeted questions
What does validity mean in the context of an experiment?
💡 Hint: Think about what makes an experiment trustworthy.
Why are controlled variables important?
💡 Hint: Consider the factors that might confuse the results.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is validity in experimental research?
💡 Hint: Think about the goal of your experiment.
True or False: Internal validity only concerns the outcome of the study.
💡 Hint: Consider what internal validity tells us about the relationship in the study.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design an experiment to test a new fertilizer’s effect on plant growth while ensuring its validity. Describe how you would control for other variables.
💡 Hint: Think about all the factors influencing plant growth and how you might isolate the effect of the fertilizer.
Discuss the implications of a study that shows a correlation between stress levels and test performance but has low internal validity due to uncontrolled variables.
💡 Hint: Consider how uncontrolled variables might produce alternative explanations for observed correlations.
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