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Analyzing Student's Mental Health
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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. Explore the students data using PostgreSQL to find out if this is true 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
    japanese_cateJapanese language proficiency
    english_cateEnglish language proficiency
    academicCurrent academic level
    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)

    exploring the dataset

    checking the fields and how the dataset is divided across student type categories

    import pandas as pd
    Unknown integration
    DataFrameavailable as
    df
    variable
    SELECT * 
    FROM students 
    LIMIT 5
    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 inter_dom , COUNT(*)
    FROM students
    GROUP BY 1;
    This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.

    Answering analysis questions

    1. how did international students performed on these mental health tests compared to domestic students
    2. how did the mental health of international students changed over time
    Unknown integration
    DataFrameavailable as
    df
    variable
    SELECT  inter_dom, 
            ROUND(AVG(todep), 2) AS average_phq, 
            ROUND(AVG(tosc), 2) AS average_scs,
            ROUND(AVG(toas), 2) AS average_as
    FROM students
    WHERE stay IS NOT NULL AND inter_dom IN ( 'Inter', 'Dom') 
    GROUP BY 1
    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
    students
    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 stay IS NOT NULL AND inter_dom ='Inter'
    GROUP BY 1
    ORDER BY 1 DESC;
    This query is taking long to finish...Consider adding a LIMIT clause or switching to Query mode to preview the result.
    students.plot(x='stay')

    REPORT

    • On average, domestic students have a slightly higher depression score than international students
    • On average international students have about 20% higher level of Acculturative Stress
    • Both student type have about thesame level of social connectedness on average
    • Out of the 3 test explored for international students, only the depression test showed a significant increase as the number of years increased, especially after the 7th year. Scs and As tests on the other hand showed a drop in level as the years went by, especially after the 7th year