CES-D: Center for Epidemiologic Studies Depression Scale

What this assessment is

The Center for Epidemiologic Studies Depression Scale, or CES-D, is a 20-item self-report measure of depression symptoms during the past week.

Laurie Radloff developed it in 1977 for general-population research, and it later became common in health, community, and clinical studies.

This page covers the original CES-D.

The CESD-R, CES-D 10, and child versions are different measures, with content and scoring rules that do not belong in an original CES-D total.

Do not merge them.

Who it was designed for

The original CES-D was designed for population research rather than diagnosis in one person.

It has since been studied across ages, cultures, health conditions, and care settings, but those studies do not produce one cutoff that works equally well everywhere.

Language and context matter because physical illness can raise responses about sleep, appetite, energy, and activity without showing why those symptoms occur.

Use a version validated for the population and language in front of you.

How it is administered

The respondent rates how often each experience occurred during the past week.

Each response is scored from 0 to 3, using categories that represent increasing numbers of days during that week.

The timeframe is short.

Seven days. Twenty items. One named scoring method.

Use the same version, language, and completion method when comparing results over time. Do not substitute a CES-D short form without changing the instrument name and range.

What it measures

The original CES-D samples depressed mood, positive affect, physical or activity-related symptoms, and interpersonal difficulty.

These groups help describe the content, although their factor structure has not been identical in every population.

The CESD-R was designed later to align more closely with diagnostic symptom groups. The PHQ-9 is a separate nine-item depression screen with a two-week timeframe.

Similar purpose does not mean equivalent score.

Keep each result on its own scale.

How scoring works

Score each of the 20 responses from 0 to 3. Four positively worded items are scored in the opposite direction.

Add the scored responses for a total from 0 to 60.

Higher totals indicate more frequent depression symptoms during the past week.

The original score of 16 or more was intended to identify people with substantial symptoms for further study or assessment. It was not a diagnosis.

Complete the form before scoring. If answers are missing, use the rule specified by the study or validated protocol. Do not silently replace missing answers with zero.

How to interpret a CES-D score

A total below 16 falls below the original screening boundary. A total of 16 or more crosses it.

That is one boundary, not a set of universal severity bands.

Different studies have found that other thresholds work better in specific populations, because the balance between missed cases and false positives depends on age, setting, health status, language, and purpose.

Treat 16 as the original research flag.

Review the total with functioning, symptom pattern, medical context, and a clinical interview when diagnosis matters.

What the score cannot tell you

The CES-D cannot confirm major depressive disorder or identify the cause of symptoms.

It does not establish that symptoms lasted for a full depressive episode. It also cannot separate depression from grief, anxiety, medication effects, substance use, sleep disruption, or medical illness.

A lower result does not prove that no support is needed. A higher result does not show which treatment is appropriate.

Screening is a prompt for context.

Evidence and limitations

The American Psychological Association assessment guide describes the original CES-D as a 20-item, four-response measure of past-week depression symptoms.

An independent psychometric study confirms the 0-to-60 range and illustrates how shortened forms and population differences change interpretation.

The measure predates current diagnostic criteria. Its broad population-research design remains useful, but it should not be described as a complete DSM-5 depression assessment.

Name the original form.