A major university would like to improve its tarnished image following a large on-campus scandal. Its marketing department develops a short television commercial and tests it on a sample of n = 10, the first ten students who entered a housing commons area who agreed to participate. Attitudes about the university are measured with a short questionnaire, both before and after viewing the commercial. Attitudes were on a scale of 0 - 20, which higher numbers reflecting better attitudes. Use the provided data to examine whether the commercial improved the university's image. The data are as follows:
What is the best way to do the assignment below:
A major university would like to improve its tarnished image following a large on-campus scandal. Its
marketing department develops a short television commercial and tests it on a sample of n = 10, the first ten students who entered a housing commons area who agreed to participate. Attitudes about the university are measured with a short questionnaire, both before and after viewing the commercial. Attitudes were on a scale of 0 - 20, which higher numbers reflecting better attitudes. Use the provided data to examine whether the commercial improved the university's image. The data are as follows:
Person X1 (before) X2 (after)
A 15. 15
B 11 13
C 10 18
D 11 12
E 14 16
F 10. 10
G 11 19
H 10 20
I 12 13
J 15 18
1. How do I in this specific scenario, know what is the independent variable? Is it between or within-subjects? How many levels does it have, and what are they?
3. What is the relevant statistical output?
4. How do I create an appropriate graph in SPSS?
5. How do I include a full write-up to include a complete statistical notation as shown in the weekly presentations? The write-up also needs interpretation. If significant, state how. If it is not significant, what does that mean in layman's terms?
6. How do I know if this experiment has more internal validity or external validity? Explain your answer.
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