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Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
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Related Experiment Video

Updated: Jun 25, 2026

A New Method for Inducing a Depression-Like Behavior in Rats

A New Method for Inducing a Depression-Like Behavior in Rats

Published on: February 22, 2018

Is suicidality distinguishable from depression? Evidence from a community-based sample.

A Kate Fairweather-Schmidt¹, Kaarin J Anstey, Andrew J Mackinnon

¹Centre for Mental Health Research, Building 63, Australian National University, ACT, Australia. kate.fairweather-schmidt@anu.edu.au

The Australian and New Zealand Journal of Psychiatry

|February 18, 2009

Summary

Suicidality is distinct from depression, though correlated. This relationship remains stable across genders and age groups, indicating suicidality is an independent construct requiring specific assessment.

Related Experiment Videos

Last Updated: Jun 25, 2026

A New Method for Inducing a Depression-Like Behavior in Rats

A New Method for Inducing a Depression-Like Behavior in Rats

Published on: February 22, 2018

Area of Science:

Psychiatry
Psychology
Epidemiology

Background:

Suicidal behavior is often linked to depression.
Limited understanding of suicidality's stability across lifespan and genders.

Purpose of the Study:

Investigate if suicidality is a depression symptom or independent.
Examine construct stability across age and gender.

Main Methods:

Community-based sample (7485 individuals, ages 20-64).
Confirmatory factor analysis for model fit and measurement invariance.

Main Results:

Two-factor model (depression and suicidality) superior to single-factor.
Strict measurement invariance confirmed across gender and age groups.

Conclusions:

Suicidality is distinguishable from depression, but correlated.
Factorial relationship is stable across genders and age cohorts.
Need for assessment tools measuring suicidality independently of depression.