Project #211251 - Experimental Research Read and Short Answers

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Due By (Pacific Time) 11/14/2017 06:00 pm

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Due: 11/14 6:00 pm PST

 Experimental Research Take Home Quiz #1 

Course Material Manual (if you need it)

Overview: You will briefly answer ten objective short-answer questions that require you to dissect two experiments reported by Peña, Hancock, and Merola in a 2009 issue of Communication ResearchView in a new window

Your answers must be typed, 12 point font, 1-inch margins. Note that most of these questions can be answered with a single sentence. Your answers should fit easily on a single page.


Evaluation: Your answers to these questions will be equally weighted (2-points each).Think of this as a take-home quiz. The work you submit must be your own. You may not discuss this assignment or your ideas with other people. Doing so will be considered cheating.

Assistance: Your instructor will gladly answer questions you have about the experiments in this study. I will not tell you if your draft answers are correct, as this is a quiz. If you come seeking guidance, please bring specific questions about the article, not your responses to the quiz questions. 


  1. In Experiment 1, what experimental manipulation was used to “prime” research participants in this study? 
  2. In Experiment 1, a 2x2 factorial design was used. One of the experimental factors was a true independent variable – that is, it was manipulated by the experimenter with just one level (version) of the variable presented to participants based on random assignment. The other experimental factor was a “grouping variable” used to classify research participants based on a characteristic they brought to the experiment. What was the manipulated independent variable and what was the grouping variable?
  3. There were two dependent variables in Experiment 1, each measured with a set of indicators. What where the two dependent variables?
  4. “Demand characteristics” refers to a threat to internal validity in which research participants form an interpretation of the experiment's purpose and unconsciously change their behavior to fit that interpretation. What did the researchers do to determine if such a threat was present in Experiment 1 and Experiment 2?
  5. “External validity” refers to the extent to which the results of a study can be generalized to other kinds of people, experimental stimuli, and settings. Describe two features present in both Experiment 1 and Experiment 2 that limit external validity.
  6. In Experiment 1, the same avatar was used for all research subjects (a cloaked figure). Doing so enhanced internal validity, but may have reduced external validity. Explain.
  7. In Experiment 1, an interaction was found between the two experimental factors with regard to their effect on group cohesion (see page 845). Why was it concluded that the two experimental factors “interacted”? (Hint: We are simply looking for evidence that you understand the meaning of “interaction.”)
  8. In Experiment 2, a 3x2 factorial design was used. How many experimental conditions were present in this design? List all conditions.
  9. List two ways in which the design of Experiment 2 is superior to the design of Experiment 1?
  10. A classmate, upon reading the results of these experiments, decides to dress only in white dress shirts, white pants, and white shoes forever more. Putting aside the old fashion rule that one should not wear white after Labor Day, is it safe for your classmate to generalize from these studies in such a manner? Explain.


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