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Experimental Design: Independent and Dependent Variables

Quiz by Jennifer Livers

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11 questions
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  • Q1
    Students of different ages were given the same jigsaw puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the independent variable?
    Ages of the students
    Type of jigsaw puzzle
    Time to finish the puzzle
    30s
  • Q2
    Students of different ages were given the same jigsaw puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the dependent variable?
    Ages of students
    Type of jigsaw puzzle
    Time it took to put the puzzle together
    30s
  • Q3
    Students of different ages were given the same jigsaw puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the controlled variable?
    Participants were given same type of puzzle.
    Age of students
    Time to finish the puzzle
    30s
  • Q4
    An investigation was done with an electromagnetic system made from a battery and wire wrapped around a nail. Different sizes of nails were used. The number of paper clips the electromagnet could pick up was measured. What is the independent variable?
    Battery and wire
    Sizes of nails
    # of paper clips
    30s
  • Q5
    An investigation was done with an electromagnetic system made from a battery and wire wrapped around a nail. Different sizes of nails were used. The number of paper clips the electromagnet could pick up was measured. What is the dependent variable?
    Different sizes of nails
    Number of paper clips picked up
    Electromagnetic system
    30s
  • Q6
    The more time people spend using social media, the less they read books. What is the independent variable?
    Amount of books read
    People
    Time on social media
    30s
  • Q7
    A comprehension test was given to students after they had studied textbook material either in silence or with the television turned on. What is the dependent variable?
    Amount of time studying
    Silence
    Achievement (grade) on the test
    45s
  • Q8
    You want to compare brands of paper towels, to see which holds the most liquid. What is the independent variable?
    Brand of paper towel
    How much liquid the paper towel absorbs
    Person comparing paper towels
    45s
  • Q9
    You want to compare brands of paper towels, to see which holds the most liquid. What is the dependent variable?
    The person administering the experiment.
    Brand of paper towel
    Amount of liquid absorbed by the paper towel
    45s
  • Q10
    You want to determine whether a chemical is essential for rat nutrition, so you design an experiment. What is the independent variable?
    Health of the rat
    The presence or absence of the chemical
    Type of food the rat eats
    45s
  • Q11
    You want to determine whether a chemical is essential for rat nutrition, so you design an experiment. What is the dependent variable?
    The absence or presence of the chemical.
    The food the rat eats.
    The health of the rat.
    45s

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