What are the independent and dependent variables for this experiment? Why?

Learning Goal: I’m working on a psychology project and need support to help me learn.

Part of analyzing research is being able to identify the different parts of a design and to be able to spot inconsistencies or flaws within it. Even published research may contain issues. Please read the scenario below and then answer the follow-up questions using support from chapter 3 or other sources for your discussion this week.

Maryann wanted to investigate the relationship between color and mood. After performing a review of the literature, she decided to place 10 participants in 5 different colored rooms to assess how their moods changed. Each participant was placed in a different room with a distinct wall color and then given a basic survey on how they felt about it. After 20 minutes, the researcher rotated the participants immediately to a different color room and then she repeated the process. 2 of the 10 participants were also part of a control group. Instead of being placed in rooms with distinct colors, they were rotated into rooms with white walls each time.

Please answer the following questions as your discussion post for this week.

  • What are the independent and dependent variables for this experiment? Why?
  • Why do we need to have a control group?
  • Are there any issues with the control group?
  • Can you establish covariance between the variables?
  • Does this experiment have good external validity? Why or why not?
  • Would random assignment of participants matter in this experiment?

Remember to cite your source(s) using APA format.

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