researcher believes that part of college students' success in school is attributed to their personality type. Her research hypothesis is that college students with Type B personalities will endure frustration in an academic assessment better than studen

Question 4 (24 points)

   

[removed]64. A researcher believes that part of college students’ success in school is attributed to their personality type.  Her research hypothesis is that college students with Type B personalities will endure frustration in an academic assessment better than students with Type A personalities.  She obtained a convenience sample of 40 volunteer college students and classified each person as having either Type A or Type B personality. Next, she sent the volunteers individually to a lab where they were frustrated by a confederate experimenter who asked them to solve 10 anagrams that were unsolvable. Then the confederate experimenter gave the volunteers a new set of 10 anagrams that did have valid solutions and timed how long it took each of them to solve these anagrams (in minutes). The following data was obtained:                   GROUP  n M SD           Type A Personality 20 12.96 3.943           Type B Personality 20 9.34 4.318        t = 1.63 df = 38  p = 0.273 Cohen’s d = .23

 A)      What kind of research design was used here?  How do you know?

B)      Is this a true experiment?  How do you know?

C)      Name the independent variable and identify the scale of measurement for the IV.

D)      Note that the description of this experiment does not include a good operational definition for the IV.  Pretend that you are the experimenter for this study.  How would you operationally define the IV for this study as it is described in the question (don’t change the IV or the levels, just give them an appropriate operational definition)?

E)      Name the dependent variable and identify the scale of measurement for the DV.

F)       Did the IV have a statistically significant effect on the DV?  How do you know?

G)      Write a complete statistical conclusion for these results using proper APA style (just like you did for ID4).

 

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