GAD-2: two-item anxiety screening tool

Anxiety

Take the adult GAD-2 anxiety screen. Two questions cover the past two weeks and produce a 0 to 6 total; a score of 3 supports fuller assessment.

Overview

The GAD-2 is a two-question adult anxiety screen drawn from the GAD-7. It asks about nervousness and uncontrollable worry during the past two weeks, then adds the two answers for a 0-to-6 total. A score of 3 or higher supports fuller assessment. It does not diagnose or grade anxiety severity.

Who should take this assessment?

The GAD-2 can provide a quick first look when an adult has anxiety concerns or when a clinical service uses a defined screening pathway. Its original validation was in adult primary care.

This page does not establish the GAD-2 as a universal screening schedule. It also does not establish adolescent use. Services should choose the population, interval, follow-up capacity, and cutoff before adding the questionnaire to a workflow.

What to expect

The two questions come from the official English GAD-7 form. Both use the same past-two-weeks stem and four frequency choices:

  • Not at all: 0
  • Several days: 1
  • More than half the days: 2
  • Nearly every day: 3

Survey Doctor requires both answers. There is no reverse scoring or optional item.

How scoring works

The two values are added for a total from 0 to 6.

Two answers. One sum.

ScoreScreening meaningUseful next step
0-2Below the published cutoffReview symptoms and context; this does not rule out care
3-6Meets the published adult cutoffComplete a fuller anxiety assessment

The GAD-2 has one screening boundary, not severity bands. A 6 reflects more frequent endorsement of these two symptoms than a 3. It does not create a separate “high probability” category or establish greater clinical severity.

For a plain-language walkthrough, see what your GAD-2 score means.

What the cutoff can mean

The 2007 validation study compared questionnaire results with a structured telephone interview in 965 adults from 15 US primary-care clinics. At a cutoff of 3, the GAD-2 had 86% sensitivity and 83% specificity for generalized anxiety disorder (Kroenke et al., 2007).

Those are sample-specific performance figures. Context changes accuracy. They do not mean that 86% of people scoring 3 or higher have the disorder; predictive value changes with population, setting, and reason.

Lowering a cutoff catches more possible cases but creates more false alarms. Raising it does the opposite. Use another threshold only when evidence and the service's follow-up plan support that choice.

What the GAD-2 leaves out

Two questions cannot cover the full anxiety picture. The GAD-2 leaves out worry across different topics, trouble relaxing, restlessness, irritability, and fear that something awful may happen. The GAD-7 asks about those areas.

Brevity has limits.

The score also does not assess functioning, cause, long-term course, or every anxiety condition. Physical illness, medication effects, substances, sleep loss, and acute stress can influence the answers. A clinical assessment can examine those possibilities.

Using the result

A score of 3 or higher is a reason to complete the GAD-7 or discuss the symptoms with a healthcare professional. Bring the item responses, not only the total. They show which of the two concerns contributed.

A score below 3 is not an all-clear. Ask for further assessment when anxiety is persistent, distressing, or interfering with daily life, whatever the total. Do not start, stop, or change treatment because of this score alone.

Repeated GAD-2 results can show changes in the two reported symptoms when the same form and conditions are used. They still do not become a severity measure. The GAD-7 gives a broader symptom profile when more detail is needed.

Evidence and population limits

Kroenke and colleagues studied the GAD-2 as the two core GAD-7 items in adult primary care. The 965-person interview sample came from selected US practices, and the authors named that practice selection as a limitation.

The study also examined panic disorder, social anxiety disorder, and PTSD, but performance differed by condition. A GAD-2 total should not be treated as a general mental health or trauma result. This page applies the source-supported adult generalized-anxiety screening boundary only.

Generalized Anxiety Disorder 7-item (GAD-7):
Seven anxiety questions with a 0-to-21 severity total

DASS-21: Depression Anxiety Stress Scales:
Three separate domain scores for depression, anxiety, and stress symptoms

Related assessment information

These pages cover related assessments. They may measure different constructs or use different populations and recall periods.

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