INTRODUCTION
SCIENTIFIC INQUIRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Amount of Sleep
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Test Scores
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Amount of Coffee
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Type of Bed
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Detailed explanation-1: -Answer and Explanation: The independent variable is the amount of sleep. The dependent variable is performance on the exam. The researcher will compare the results and determine if the amount of sleep affects performance.
Detailed explanation-2: -For example, in an experiment studying the effect of sleep deprivation on word recall, the independent (manipulated) variable would be “sleep deprivation, ‘’ which in this case may be the number of hours of sleep a participant gets in one day.
Detailed explanation-3: -The correct answer is d. The dependent variable is memory. Memory is tested to determine how sleep deprivation impaired or affected memory.
Detailed explanation-4: -The number of hours the student studies is the independent variable because nothing directly affects the number of study hours. The grade the student earns in the class is the dependent variable because how much time the student commits to preparing can affect the grade.