Economics and Student Affairs Project

• Explanatory analysis
  • Visualization.
• Regression analysis
  • Importance of factors.
• Statistical test for Likert scale data
  • Mann Whitney test.
  • Kruskal Wallis test.

Website[https://ca.studentvoice.com/app/ClientWeb/Results.aspx?ProjectId=32810]

1. Resource Usage

Generate a set of binary variables to illustrate the resource usage at UVic for this group of international students.

• Dichotomize the question 34 to question 54 to generate binary variables about whether students use this service.

• For example: Q34. If you have used any of the university services listed in this question, please indicate how helpful you found that service: - Academic Advising

• We identify “no basis to judge” and “NA” as “FALSE” and other items as “TRUE”.

• Penalized Logit regression (Lasso)

Since we have a set of new binary variable now, we are able to do logistic regression and to identify which predictor is important for student's choice about whether use this service.

Question : Q1. Have you declared your program of study? (Note, declaration is a formal process, not an expression of interest when you applied to UVic) 
 Options : No Yes 

Question : Q4. How many Economics Courses are you taking this term? 
 Options : 1 course 2-3 courses 4 or more courses Not Applicable 

Question : Q68. How long have you been studying at UVic? 
 Options : Less than 6 months 6 months to 1 year Between 1 and 2 years More than 2 years 

Question 65[https://ca.studentvoice.com/app/ClientWeb/Results.aspx?ProjectId=32810]

The “AcademicAdvising” service is majorly related to four characters:

Question : Q12. About how many hours do you spend in a typical 7-day week doing the following? - Relaxing and socializing off campus (not online) 
 Options : No basis to judge 1 to 5 hours per week 6 to 10 hours per week 11 to 20 hours per week 21 to 30 hours per week More than 31 hours per week 

Question : Q65_4:Opportunity for further studies elsewhere 
 Options :  Opportunity for further studies elsewhere 

Question : Q67. How did you enter UVic? 
 Options : As a First Year student As a Transfer student As a Visiting student As an Exchange student As an Unclassified student Other (please specify) 

Question : Q13. About how many hours do you spend in a typical 7-day week doing the following? - Relaxing and socializing off campus (online) 
 Options : No basis to judge 1 to 5 hours per week 6 to 10 hours per week 11 to 20 hours per week 21 to 30 hours per week More than 31 hours per week 

Question : Q65_4:Opportunity for further studies elsewhere 
 Options :  Opportunity for further studies elsewhere 

Question 65[https://ca.studentvoice.com/app/ClientWeb/Results.aspx?ProjectId=32810]

• Mann Whitney test.

  Example one: Do Males and Females answer differently?

• Kruskal Wallis test.

  Example two: Do scoring tendencies in terms of one queston differ by countries?

Example one: Do Males and Females answer differently?

    Wilcoxon rank sum test with continuity correction

data:  Q46InstructorOfficeHour by Q71gender
W = 706.5, p-value = 0.4919
alternative hypothesis: true location shift is not equal to 0

From the Mann-Whitney test we get a p-value of 0.4919, hence we fail to reject the null hypothesis that Males and Females have the same scoring tendency at the 5% level. So there is no difference between gender.

If there were a significant difference between the scoring tenancies of people from different countries.

    Kruskal-Wallis rank sum test

data:  Q34AcademicAdvising by Q72country
Kruskal-Wallis chi-squared = 8.6653, df = 3, p-value = 0.03409

The Kruskal-Wallis test gives us a p-vale of 0.03, hence we have evidence to reject our null hypothesis that there is no difference.

There are interesting insight about student behavior, and more are needed to be explored.

http://rpubs.com/snowdj/esap1

http://rpubs.com/snowdj/esap02

http://rpubs.com/snowdj/esap03