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.
| Nombre del Campo | Descripción |
|---|---|
inter_dom | Tipos de estudiantes (internacional o doméstico) |
japanese_cate | Dominio del idioma japonés |
english_cate | Dominio del idioma inglés |
academic | Nivel académico actual (pregrado o posgrado) |
age | Edad actual del estudiante |
stay | Duración actual de la estancia en años |
todep | Puntuación total de depresión (prueba PHQ-9) |
tosc | Puntuación total de conexión social (prueba SCS) |
toas | Puntuación total de estrés aculturativo (prueba ASISS) |
-- Run this code to view the data in students
SELECT *
FROM students;-- Find the number of international students and their average scores by length of stay, in descending order of length of stay
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'
GROUP BY stay
ORDER BY stay DESC;