Bipolar Disorder Test

This measure is designed to screen for features of bipolar spectrum conditions that may not fit classic presentations of mania or hypomania. Developed by Ronald Pies, the Bipolar Disorder Test uses the Bipolar Spectrum Diagnostic Scale (BSDS) to identify patterns of mood and energy fluctuation — including past periods of elevated mood or increased activity occurring alongside depressive episodes — that may suggest bipolar-spectrum psychopathology. It includes 20 items and typically takes about 4 minutes to complete.

Why Take a Bipolar Disorder Test

Bipolar disorder is one of the most frequently misdiagnosed mental health conditions. Most people with bipolar II or cyclothymia first present to clinicians during a depressive episode — and without a structured screen for hypomanic history, the bipolar component is easily missed. The result is years of treatment for unipolar depression that doesn't fully work, because the underlying mood disorder has not been correctly identified.

The BSDS was specifically designed to catch these softer, subtler presentations — the periods of unusual energy, reduced need for sleep, accelerated thinking, or elevated productivity that don't look like classic mania but are clinically significant. If you've been treated for depression that hasn't fully responded, experienced pronounced mood swings, or have a family history of bipolar disorder, a structured test for bipolar disorder like this one can be a critical step toward a more accurate clinical picture.

What the Assessment Measures

The BSDS uses a two-part format. First, respondents read a narrative description of mood and energy fluctuation patterns and indicate how well it describes their own experience. Then they rate how closely a series of individual symptom statements match their history. This approach captures both the overall pattern of bipolar spectrum experience and specific symptom markers, including:

• Periods of elevated or irritable mood — distinct episodes where mood was noticeably higher or more irritable than usual, with or without obvious cause
• Increased energy and reduced need for sleep — stretches of unusual productivity, racing thoughts, or feeling powered up on less sleep than normal
• Hypomanic or mixed episodes — periods of elevated mood occurring alongside depressive symptoms, which are characteristic of bipolar II and mixed presentations
• Cycling patterns — recurring shifts between high and low mood states that follow a recognizable pattern over time
• Depressive episodes — periods of low mood, reduced energy, and loss of interest, which often dominate the clinical presentation in bipolar spectrum conditions

Total scores range from 0 to 25. Scores of 11–18 suggest moderate likelihood of bipolar spectrum features; scores of 19 and above indicate high likelihood warranting further clinical evaluation.

Who This Assessment Is For

This Bipolar Disorder Test is appropriate for adults who experience depression alongside mood swings, unusual energy episodes, or periods that feel distinctly "off" in the upward direction. It is also relevant for those who have had inadequate response to antidepressants, mixed feedback from clinicians, or a family history of bipolar disorder. Clinicians use it as a structured first-step screen to flag bipolar-spectrum features before a full diagnostic workup.

Clinical Validity and Use in Practice

The BSDS has demonstrated good sensitivity and specificity for bipolar spectrum conditions, including presentations that do not meet criteria for classic bipolar I mania. Results are a screening indicator — they do not confirm or rule out a diagnosis. Elevated scores support the need for further clinical evaluation and may inform treatment planning. All results should be interpreted in the context of a comprehensive clinical interview and relevant collateral information.