Variable Identification in Psychology
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Questions and Answers

The dependent variable (DV) in the classical music relaxation study is the ______.

level of relaxation (heart rate)

The independent variable (IV) in the classical music relaxation study is ______.

classical music

The experimental group in the classical music relaxation study is the group that ______.

listens to classical music

The control group in the classical music relaxation study is the group that ______.

<p>sits in a quiet room</p> Signup and view all the answers

In Dr. Smith's maze study, the dependent variable (DV) is ______.

<p>how long it takes to run the maze</p> Signup and view all the answers

The independent variable (IV) in Dr. Smith's maze study is ______.

<p>new drug</p> Signup and view all the answers

The experimental group in Dr. Smith's maze study is the group that ______.

<p>is given the drug</p> Signup and view all the answers

The control group in Dr. Smith's maze study is the group that ______.

<p>receives no drug</p> Signup and view all the answers

In the sleep and aggression study, the dependent variable (DV) is ______.

<p>level of aggression</p> Signup and view all the answers

The independent variable (IV) in the sleep and aggression study is ______.

<p>amount of sleep</p> Signup and view all the answers

In the algae growth study, the dependent variable (DV) is ______.

<p>algae growth</p> Signup and view all the answers

The independent variable (IV) in the algae growth study is ______.

<h1>sacks fertilizer sold in stores</h1> Signup and view all the answers

In the fish stick compost study, the dependent variable (DV) is ______.

<p>height of plants (cm)</p> Signup and view all the answers

The independent variable (IV) in the fish stick compost study is ______.

<p>fish stick compost</p> Signup and view all the answers

In the running speed study, the dependent variable (DV) is ______.

<p>time it takes to run a km</p> Signup and view all the answers

The independent variable (IV) in the running speed study is ______.

<p>amount of exercise you get</p> Signup and view all the answers

In the lemon tree study, the dependent variable (DV) is ______.

<p>lemon size</p> Signup and view all the answers

The independent variable (IV) in the lemon tree study is ______.

<p>amount of water given</p> Signup and view all the answers

In the corn seed sprouting study, the dependent variable (DV) is ______.

<p>seed sprout</p> Signup and view all the answers

The independent variable (IV) in the corn seed sprouting study is ______.

<p>temperature of air</p> Signup and view all the answers

In the egg cooking study, the dependent variable (DV) is ______.

<p>how fast an egg cooks</p> Signup and view all the answers

The independent variable (IV) in the egg cooking study is ______.

<p>temperature of water</p> Signup and view all the answers

In the flight simulator study, the dependent variable (DV) is ______.

<p>performance in simulator</p> Signup and view all the answers

The independent variable (IV) in the flight simulator study is ______.

<p>information given (visual or visual + auditory)</p> Signup and view all the answers

In the chicken egg study, the dependent variable (DV) is ______.

<h1>eggs chickens lay</h1> Signup and view all the answers

The independent variable (IV) in the chicken egg study is ______.

<p>lights on for different amounts of time</p> Signup and view all the answers

Study Notes

Variable Identification in Experimental Scenarios

  • DV (Dependent Variable) represents the outcome being measured, while IV (Independent Variable) is the condition manipulated by the researcher.

Card 1: Music and Relaxation

  • DV: Level of relaxation (measured by heart rate)
  • IV: Exposure to classical music
  • Experimental Group: Participants listening to classical music for one hour
  • Control Group: Participants sitting quietly without music for one hour

Card 2: Drug Effects on Maze Performance

  • DV: Time taken to run the maze
  • IV: Administration of a new drug
  • Experimental Group: Older rats given the new drug
  • Control Group: Older rats not given the drug

Card 3: Sleep and Aggression

  • DV: Level of aggression
  • IV: Amount of sleep received
  • Experimental Groups: Participants with 3 hours or 6 hours of sleep
  • Control Group: Participants who can sleep as much as they want

Card 4: Fertilizer and Algae Growth

  • DV: Algae growth in lakes
  • IV: Number of sacks of phosphate fertilizer sold

Card 5: Fish Stick Compost and Plant Growth

  • DV: Height of plants (in cm)
  • IV: Age of fish stick compost
  • Experimental Groups: Compost aged for 3, 6, and 12 months
  • Control Group: No fish stick compost used
  • Constants: Same sunlight, water, and number of plants (25 per flat)

Card 6: Exercise and Running Time

  • DV: Time taken to run a kilometer
  • IV: Amount of exercise undertaken

Card 7: Water and Lemon Size

  • DV: Size of lemons
  • IV: Amount of water provided to lemon trees

Card 8: Temperature and Seed Sprouting

  • DV: Germination time of corn seeds
  • IV: Air temperature in which seeds are placed

Card 9: Cooking Time of Eggs

  • DV: Cooking speed of an egg
  • IV: Water temperature

Card 10: Flight Simulator Performance

  • DV: Performance rating in the flight simulator
  • IV: Type of information provided (visual or both visual and auditory)

Card 11: Light Exposure and Egg Production

  • DV: Number of eggs laid by chickens
  • IV: Duration of light exposure per day

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Description

This quiz focuses on identifying independent and dependent variables in a psychology experiment involving classical music and relaxation levels. Test your understanding of experimental and control groups through various scenarios.

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