Question

A psychologist is interested in whether changing the temperature in a classroom will increase student grades on a math exam. At the school, there are three rooms the students are randomly assigned to take their test in. Each room is set at one of the following temperatures: 65 degrees, 75 degrees, or 85 degrees. a. How many Independent Variables? b. Are they Participant or Situational Variables? c. How many conditions (groups)? d. What is the Dependent Variable? e. What measurement scale is the DV? f. Is this a between-subjects or within-subjects design? g. Please explain what the results would be, is there a positive relationship between the variables. Explain the results if there was a curvilinear relationship. h. What method of describing results would make the most sense for this study? i. What could be done to the study design to decrease the margin of error?

          A psychologist is interested in whether changing the temperature in a classroom will increase student grades on a math exam. At the school, there are three rooms the students are randomly assigned to take their test in. Each room is set at one of the following temperatures: 65 degrees, 75 degrees, or 85 degrees.

a. How many Independent Variables?
b. Are they Participant or Situational Variables?
c. How many conditions (groups)?
d. What is the Dependent Variable?
e. What measurement scale is the DV?
f. Is this a between-subjects or within-subjects design?
g. Please explain what the results would be, is there a positive relationship between the variables. Explain the results if there was a curvilinear relationship.
h. What method of describing results would make the most sense for this study?
i. What could be done to the study design to decrease the margin of error?

Added by Rosa C.

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