PSY 220 Ch. 10: Complex Experimental Designs

Card Set Information

Author:
ralejo
ID:
179553
Filename:
PSY 220 Ch. 10: Complex Experimental Designs
Updated:
2012-10-28 17:45:04
Tags:
PSY 220 Needham Complex Experimental Designs
Folders:

Description:
PSY 220 Needham Complex Experimental Designs
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user ralejo on FreezingBlue Flashcards. What would you like to do?


  1. Factorial Design
    • A design in which all levels of each independent variable are combined with all levels of the other independent variables.
    • Designs with more than 1 independent variable (or factor).
    • A factorial design allows investigation of the separate main effects and interactions of 2 or more independent variables.
  2. Independent groups design (Between-subjects design)
    An experiment in which different subjects are assigned to each group
  3. Interaction
    Situation in which the effect of 1 independent variable on the dependent variable changes, depending on the level of another independent variable.
  4. IV X PV design
    A factorial design that includes both an experimental independent variable (IV) and a nonexperimental participant (PV).
  5. Main effect
    The direct effect of an independent variable on a dependent variable
  6. Mixed factorial design
    A design that includes both independent groups (between-subjects) and repeated measures (wintin-subjects)
  7. Moderator variable
    • A variable that influences the nature of the relationship between 2 other variables (an independent variable and a dependent variable).
    • In a factorial design, the effect of the moderator variable is revealed as an interaction.
  8. Repeated measures design (Within-subjects design)
    An experiment in which the same subjects are assigned to each group
  9. Simple main effect
    In a factorial design, the effect of one independent variable at a particular level of another independent variable.
  10. Define factorial design and discuss reasons a researcher would use this design.
    • A design in which all levels of each independent variable are combined with all levels of the other independent variables.
    • Designs with more than 1 independent variable (or factor).
    • A factorial design allows investigation of the separate main effects and interactions of 2 or more independent variables.
  11. Describe the information provided by main effects and interaction effects in a factorial design.
    • Main effect: overall relationship between the independent variable and the dependent variable.
    • Interaction effect: indicates that the effect of 1 independent variable different at different levels of the other independent variable.
  12. Describe an IV X PV design.
    • A factorial design that includes both an experimental independent variable (IV) and a nonexperimental participant (PV).
    • Allows researchers to investigate how different types of individuals respond to the same manipulated variable.

    • Simplest:
    • 1 manipulated independent variable with at least 2 levels
    • 1 participant variable with at least 2 levels
  13. Discuss the role of simple main effects in interpreting interactions.
    • Examines mean differences at each level of the independent variable
    • The results are analyzed as if we had separate experiments at each level of the other independent variable.
  14. Compare the assignment of participants in an independent groups design, a repeated measures design, and a mixed factorial design.
    • Independent groups design: different group of participants assigned to each condition
    • Repeated measures design: same individuals will participate in all conditions.
    • Mixed factorial design: Combination of independent groups and repeated measures.

What would you like to do?

Home > Flashcards > Print Preview