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Avinash Kumar/

Project: Analyzing Students' Mental Health in SQL

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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)
Unknown integration
DataFrameavailable as
students
variable
SELECT * FROM public.students
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df3
variable
Select * from students where inter_dom like 'Inter%'
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df4
variable
Select * from students where inter_dom like 'Dom%'
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df5
variable
Select * from students where inter_dom Not like 'Inter%' and inter_dom not like 'Dom%'
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df6
variable
Select min(todep) as min_phq, max(todep) as max_phq,
round(avg(todep),2) as avg_phq from students
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df7
variable
Select min(tosc) as min_scs, max(tosc) as max_scs,
round(avg(tosc),2) as avg_scs from students
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df8
variable
Select min(toas) as min_as, max(toas) as max_as,
round(avg(toas),2) as avg_as from students
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df9
variable
Select 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_dom
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df10
variable
Select 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_dom
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df11
variable
Select 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_dom
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df12
variable
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;
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
Unknown integration
DataFrameavailable as
df
variable
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;
This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
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