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Independent and Dependent Variables

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  • A scientist studies whether plant growth changes with different amounts of water. Determine the IV and DV
    IV: Water amount, DV: Plant growth
  • A scientist measures how water temperature affects the amount of sugar that dissolves. Determine the IV and DV.
    IV: Temperature, DV: Sugar dissolved
  • An experiment studies if temperature affects how fast ice melts. Determine the IV and DV.
    IV: Temperature, DV: Melting rate
  • A company tests whether price changes affect the number of products sold. Determine the IV and DV.
    IV: Price, DV: Products sold
  • A teacher wants to see if giving students more homework affects their quiz grades. Determine the IV and DV.
    IV: Homework amount, DV: Quiz grades
  • A doctor changes medicine dosage to test effects on blood pressure. Determine the IV and DV
    IV: Dosage, DV: Blood pressure
  • A mechanic tests if using different fuels affects a car’s speed. Determine the IV and DV.
    IV: Type of fuel, DV: Car speed
  • Researchers study whether hours of sleep affect reaction time in drivers. Determine the IV and DV.
    IV: Hours of sleep, DV: Reaction time
  • A biologist studies if soil pH affects plant leaf color. Determine the IV and DV.
    IV: Soil pH, DV: Leaf color
  • Researchers test whether background noise affects memory recall. Determine the IV and DV.
    IV: Noise level, DV: Memory recall
  • A farmer tests whether different fertilizer brands increase corn yield. Determine the IV and DV.
    IV: Fertilizer brand, DV: Corn yield
  • Students test if listening to music while studying improves test scores.. Determine the IV and DV.
    IV: Music vs. no music, DV: Test scores
  • A chef tries different oven temperatures to see how quickly cookies bake. Determine the IV and DV.
    IV: Oven temperature, DV: Baking time
  • A gardener tests whether adding compost changes the height of bean plants. Determine the IV and DV
    IV: Compost, DV: Plant height
  • Students test whether the size of a parachute affects how slowly it falls. Determine the IV and DV
    IV: Parachute size, DV: Falling speed
  • Students study whether the type of paper airplane affects how far it flies. Determine the IV and DV
    IV: Type of airplane, DV: Distance flown
  • A coach changes the number of practice hours to see if it improves free-throw accuracy. Determine the IV and DV.
    IV: Practice hours, DV: Free-throw accuracy
  • Students test whether the number of text messages sent affects battery life. Determine the IV and DV.
    IV: Text messages sent, DV: Battery life
  • A scientist tests whether the amount of sunlight affects the growth of tomato plants. Determine the IV and DV.
    IV: Sunlight, DV: Plant growth
  • A fitness instructor tests whether different workout programs lead to greater weight loss. Determine the IV and DV.
    IV: Workout program, DV: Weight loss
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