Read attached Forbes article and fill out attached worksheet The website is https://www.forbes.com/sites/alicegwalton/2019/06/16/to-appear-more-intimidating-just-tilt-your-head-down-study-suggests/

PSYC 3510

Workshop 7

Module 7: “Experimental Designs”

Purpose

Knowledge: After completing this workshop, you will:

  • Know the basic features of an experiment that lets us make a causal claim

  • Understand why researchers might choose a certain research design over another

Skills: In this workshop, we will practice:

  • Identifying features of experimental designs

  • Interrogating validities important to experimental designs

Activity – Experimental Designs

In Workshop 7, we will work on how we can read a popular science article about an experiment and identify key parts of causal claims using our new understanding of experimental design. We will first read an article published in Forbes about research that was published in Psychological Science. Then, we’ll practice identifying key features of experiments to interrogate the article’s causal claims.

Reading is available in the Workshop 7 Module as a PDF or at the below link:

https://www.forbes.com/sites/alicegwalton/2019/06/16/to-appear-more-intimidating-just-tilt-your-head-down-study-suggests/?sh=1ecb4f3935d0

NAME:

  1. After reading the assigned article, describe the study below by answering the following questions.


    1. In your own words, what is the study about? Summarize it in one sentence.

    1. Given that this is a true experiment, what type of claim should we be expecting the authors to make?

    1. Identify the independent and dependent variable for this study.

    1. What are the three levels of the IV (in other words, what are the possible values or categories of the IV)?

    1. Did the same group of participants rate all levels of the IV? Is this a within-subjects or a between subjects design? (Please answer both questions).

    1. What's the experimental design, if participants rated each photo immediately after viewing it? (Posttest only? Pretest-posttest? Repeated measures? Concurrent measures?)

    1. What type of measure was used to assess the dependent variable (self-report/survey, observational, or physiological)?

    1. Assess the construct validity of the experiment. How do you feel about the operationalization of “dominance” in the study (in other words, do you feel it really gets at “dominance”, or something else)? Why?

    1. Assess the internal validity of the experiment by naming one potential confound of the study (this will require you to think about what other explanations there might be for the results).

    1. The experimenters first used computer generated avatars of faces, and then replicated (repeated) the experiment using actual face photos. Given that this replication probably makes the results more generalizable to the “real world”, what type of validity does this enhance?

    1. Based on your answers to the above, do you believe the claim being made? Would you change anything about the experimental design?