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.
-- Run this code to save the CSV file as students
SELECT *
FROM 'students.csv';Explore and understand the overall of Students' Mental Health
SELECT inter_dom, gender, COUNT(*) Total_Student
FROM students
GROUP BY inter_dom, gender
ORDER BY 1,2;SELECT inter_dom, age, COUNT(*) N_Student
FROM students
WHERE inter_dom = 'Inter'
GROUP BY inter_dom, age
ORDER BY N_Student DESC;| 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 inter_dom, age, COUNT(*) N_Student
FROM students
WHERE inter_dom = 'Dom'
GROUP BY inter_dom, age
ORDER BY N_Student DESC;df3SELECT stay,
ROUND(AVG(todep), 2) average_phq,
ROUND(AVG(tosc), 2) average_scs,
ROUND(AVG(toas), 2) average_as
FROM students
WHERE inter_dom = 'Inter'
GROUP BY stay
ORDER BY stay DESC;