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Credo Reference: Psychology

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Credo Reference helps you start your psychology research with reference materials on personal, interpersonal, and social psychology.


Disclaimer: This informational guide discusses topics such as depression and suicide: please exercise caution.

Each resource gives insight into the everyday lives of those suffering with depression, tips and tricks for how to minimize it's impact on your day, and inspiring stories from those who struggle with the condition. Keep in mind that all experiences are unique, and the information included does not reflect everyone's lived reality.

Depression Research Starter


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Depression Research Starter

The word “depression” is often used to describe many different things. It can define a fleeting mood, or perhaps an outward physical appearance of sadness, or for others, a diagnosable clinical disorder. In any year, millions of adults suffer from clinically diagnosed depression, a mood disorder that often affects personal, vocational, social, and health functioning.

The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5, 2013) of the American Psychiatric Association delineates several mood disorders that include clinical depression, known as major depressive disorder.

Depression Statistics

Statistics from the World Health Organization on Depressive Disorders

An estimated 3.8% of the population experience depression, including: 

  •  5% of adults (4% among men and 6% among women), and
  • 5.7% of adults older than 60 years.

Approximately 280 million people in the world have depression.

  • Depression is about 50% more common among women than among men.
  • Worldwide, more than 10% of pregnant women and women who have just given birth experience depression.
  • More than 700, 000 people die due to suicide every year. Suicide is the fourth leading cause of death in 15–29-year-olds.

Campus Resources