Factorial Designs
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Questions and Answers

Which of the following statements about factorial designs is true?

  • A main effect is the interaction between two independent variables.
  • Factorial designs can have more than two independent variables. (correct)
  • Factorial designs can only have two independent variables.
  • Factorial designs can provide information about treatment effects but not interaction effects.
  • Which of the following is an example of a main effect in a factorial design?

  • The effect of perpetrator's gender on a crime.
  • The effect of exercise intensity and duration on depression. (correct)
  • The effect of temperature and humidity on plant growth.
  • The effect of psychotherapy and antidepressant drugs on depression.
  • In a 2 x 3 x 3 factorial design, how many treatment conditions are there?

  • 18 (correct)
  • 3
  • 2
  • 6
  • What is the purpose of performing a statistical test in a factorial design?

    <p>To determine if there are any main effects.</p> Signup and view all the answers

    Which of the following is not true about factorial designs?

    <p>Factorial designs can only have two treatment conditions.</p> Signup and view all the answers

    Study Notes

    Factorial Designs

    • A factorial design is a type of experimental design that involves two or more factors, each with multiple levels.
    • The purpose of performing a statistical test in a factorial design is to determine the significance of the main effects and interactions between factors.

    Main Effects in Factorial Designs

    • A main effect in a factorial design refers to the effect of one factor on the response variable, averaging across the levels of the other factors.

    Treatment Conditions in Factorial Designs

    • In a 2 x 3 x 3 factorial design, there are 2 × 3 × 3 = 18 treatment conditions.

    Characteristics of Factorial Designs

    • Factorial designs allow for the estimation of main effects and interactions between factors.
    • Factorial designs are useful for studying the joint effects of multiple factors on a response variable.

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    Description

    Test your knowledge on factorial designs and their components, including independent variables, dependent variables, and main effects. This quiz covers the basics of factorial designs and their applications in psychological research.

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