Does going to university in a different country affect your mental health? A Japanese international university surveyed its students in 2018 and published a study the following year that was approved by several ethical and regulatory boards.
The study found that international students have a higher risk of mental health difficulties than the general population, and that social connectedness (belonging to a social group) and acculturative stress (stress associated with joining a new culture) are predictive of depression.
Explore the students data using PostgreSQL to find out if you would come to a similar conclusion for international students and see if the length of stay is a contributing factor.
Here is a data description of the columns you may find helpful.
| Field Name | Description |
|---|---|
inter_dom | Types of students (international or domestic) |
japanese_cate | Japanese language proficiency |
english_cate | English language proficiency |
academic | Current academic level (undergraduate or graduate) |
age | Current age of student |
stay | Current length of stay in years |
todep | Total score of depression (PHQ-9 test) |
tosc | Total score of social connectedness (SCS test) |
toas | Total score of acculturative stress (ASISS test) |
-- Run this code to save the CSV file as students
SELECT *
FROM 'students.csv'
-- Start coding here...
/*SELECT inter_dom, count(* ) as number
FROM 'students.csv'
group by inter_dom*//*SELECT *
FROM students
where inter_dom like ('Inter')*/
select max(todep) as max_phq,min(todep)as min_phq,round(avg(todep),2) as avg_phq,
max(tosc) as max_scs,min(tosc) as min_scs,round(avg(tosc),2) as avg_scs,
max(toas) as max_as,min(toas) as min_as,round(avg(toas),2) as avg_as
from students
where inter_dom like 'Inter'
select stay,round(avg(todep),2) as average_phq,
round(avg(tosc),2) as average_scs,round(avg(toas),2) as average_as
from students
where inter_dom like 'Inter'
group by stay
order by stay desc