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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 NameDescription
inter_domTypes of students (international or domestic)
japanese_cateJapanese language proficiency
english_cateEnglish language proficiency
academicCurrent academic level (undergraduate or graduate)
ageCurrent age of student
stayCurrent length of stay in years
todepTotal score of depression (PHQ-9 test)
toscTotal score of social connectedness (SCS test)
toasTotal score of acculturative stress (ASISS test)
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
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DataFrameas
students
variable
-- Run this code to view the data in students
SELECT * 
FROM students;
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DataFrameas
df
variable
SELECT 
STAY,
COUNT(*) AS COUNT_INT,
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' -- Filter international students
GROUP BY STAY
ORDER BY STAY DESC; 
sns.heatmap(df[['average_phq', 'average_scs', 'average_as']].corr(), annot=True)