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) |
SELECT * FROM public.studentsSelect * from students where inter_dom like 'Inter%'Select * from students where inter_dom like 'Dom%'Select * from students where inter_dom Not like 'Inter%' and inter_dom not like 'Dom%'Select min(todep) as min_phq, max(todep) as max_phq,
round(avg(todep),2) as avg_phq from studentsSelect min(tosc) as min_scs, max(tosc) as max_scs,
round(avg(tosc),2) as avg_scs from studentsSelect min(toas) as min_as, max(toas) as max_as,
round(avg(toas),2) as avg_as from studentsSelect inter_dom, min(todep) as min_phq, max(todep) as max_phq,
round(avg(todep),2) as avg_phq from students
where inter_dom ='Inter' group by inter_domSelect inter_dom,min(tosc) as min_scs, max(tosc) as max_scs,
round(avg(tosc),2) as avg_scs from students
where inter_dom ='Inter' group by inter_domSelect inter_dom,min(toas) as min_as, max(toas) as max_as,
round(avg(toas),2) as avg_as from students
where inter_dom ='Inter' group by inter_domSELECT 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 = 'Inter'
GROUP BY Stay
ORDER BY stay DESC;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 = 'Inter'
GROUP BY stay
ORDER BY stay DESC;