Bipolar Disorder Self-Assessment Test (Clinician Version)

Abstract

The Bipolar Disorder Self-Assessment Test (Clinician Version) is a specialized, structured screening instrument developed by researchers associated with the Black Dog Institute. Its primary clinical function is to facilitate the differential diagnosis between Bipolar Disorder, particularly Bipolar II, and unipolar depression. The scale is founded on the “isomer model,” which posits structural differences between these affective disorders despite shared depressive symptomology. The test employs a two-part methodology: initial screening questions to confirm historical major depressive episodes and cyclical mood patterns, followed by a comprehensive 27-item checklist designed to assess the presence and intensity of characteristic hypomania or ‘up’ states.

Keywords

Bipolar Disorder, Bipolar II, Unipolar Depression, Screening Tool, Hypomania, Mood Cycling, Affective Disorders, Clinical Assessment, Isomer Model, Black Dog Institute.

Authors

Gordon Parker, Dusan Hadzi-Pavlovic, Lucy Tully, Kathryn Fletcher, Melissa Barrett, V. Manicavasagar, H. Synnott, Michael Breakspear, Matthew Hyett, B. Blanch, L. Greenfield.

Purpose

The core objective of this self-assessment tool is to provide rapid and systematic screening for symptoms indicative of a bipolar spectrum diagnosis within clinical environments. This is particularly crucial for patients who initially present with symptoms of major depressive disorder (MDD), where the presence of subtle or unacknowledged hypomanic episodes may be missed during standard interviews.

The structured format compels clinicians to systematically inquire about the nuanced symptoms of hypomania—the ‘ups’ that are pathognomonic of bipolar conditions. By focusing on the frequency and intensity of elevated mood symptoms, the scale addresses the common diagnostic challenge where patients often fail to spontaneously report hypomanic episodes because they may perceive these states as positive, productive, or simply periods of high energy. The scale thus ensures that key diagnostic criteria, aligned with frameworks such as the DSM-5, are consistently evaluated based on the patient’s subjective experience of mood cycling.

Construct

The scale is designed to measure the core diagnostic features differentiating Bipolar Disorder (specifically Bipolar II) from unipolar depression. The primary construct operationalized is the presence and severity of hypomanic states, or ‘up’ times, which follow or alternate with periods of clinical depression. The instrument emphasizes key features of mood elevation including increased energy, heightened confidence, enhanced creativity, reduced need for sleep, racing thoughts, and impulsive behavior.

The theoretical foundation of the scale is the “isomer model,” proposed by the authors, which suggests that bipolar and unipolar disorders are fundamentally different in structure, even when they share depressive symptomatology. The instrument’s structure ensures alignment with diagnostic requirements: initial screening confirms a history of major depressive episodes, and the subsequent 27-item checklist quantitatively evaluates the qualitative shift associated with the elevated mood state, thereby capturing the essence of affective cycling.

Validity

The validity of the Bipolar Disorder Self-Assessment Test has been supported by multiple validation studies, notably those conducted by Parker and colleagues (2008, 2011). These studies confirmed strong concurrent and discriminant validity when comparing the measure against established screening instruments, such as the Mood Disorder Questionnaire (MDQ), and definitive clinical interview data. The research demonstrated the scale’s effective ability to discriminate accurately between Bipolar I, Bipolar II, and unipolar major depressive disorder diagnoses within clinical populations.

The instrument exhibits strong psychometric properties, particularly in its focus on specific behavioral and cognitive shifts associated with ‘up’ periods. This detail enhances its criterion validity for the Bipolar II diagnosis, confirming that the checklist items reliably reflect the experience of hypomania as defined by diagnostic criteria and clinical consensus.

Reliability

While specific measures of internal consistency, such as Cronbach’s alpha, were not explicitly detailed in the provided source materials, the scale’s rigorous development and ongoing validation studies (Parker et al., 2006, 2008, 2011) strongly suggest adequate reliability for its function as a screening instrument. The clarity, specificity, and structured phrasing of the 27 checklist items are designed to minimize ambiguity, contributing to reliable and consistent patient self-reporting, provided the assessment is administered within a consistent clinical framework.

Furthermore, given that mood disorder symptomology tends to be stable over short periods, the instrument is expected to demonstrate high test-retest reliability. Its structured, gate-based methodology enhances consistency across different administrations and clinicians.

Factor Analysis

Explicit, detailed factor analytic results are not documented in the source content. However, the structure of the 27-item hypomania checklist implies that the items are intended to load onto several hypothesized factors representing key dimensions of hypomanic experience. These dimensions typically include elevated mood and grandiosity, increased energy and reduced sleep need, and irritability and impulsivity.

The underlying conceptualization likely supports either a single dominant factor representing overall hypomania severity, or potentially two correlated factors that capture the commonly observed differentiation between euphoric/elated components and dysphoric/irritable components of manic and hypomanic states, aligning with contemporary psychiatric conceptualizations of Bipolar Disorder.

Instrument

Test Type: Self-report screening measure (Interpretation is Clinician-administered)

Format: Structured screening questions (3 gating questions) followed by a 27-item checklist utilizing a 3-point rating scale.

Language Available: English (Primary publication language).

Population Group: Clinical population suspected of having an affective disorder.

Age Group: Adults.

Population Details: Individuals seeking mental health services, particularly those presenting with or suspected of having major depressive disorder who require thorough screening for bipolar spectrum conditions.

Test Methodology: The scale utilizes a three-step gating process (Questions 1-3) to confirm the presence of historical major depression and evidence of mood cycling. If the patient passes the gate, they then rate 27 specific symptoms on a 3-point scale (0 = No more than usual; 1 = Somewhat more than usual; 2 = Much more than usual) based on their experience during ‘up’ times.

Keywords

Screening, Affective Disorders, Mood Assessment, Bipolar II, Hypomania, DSM-5, Psychometrics, Differential Diagnosis, Black Dog Institute.

Authors

Author ORCID Identifier: Not provided in source material.

Affiliation Email addresses: Not provided in source material.

Correspondence Address: Correspondence is generally directed to the Black Dog Institute, NSW, Australia, based on the primary affiliation of the developing authors.

Permissions & Fee and Test Year

The Bipolar Disorder Self-Assessment Test was initially developed and validated starting around 2006, with subsequent key publications refining its utility in 2008 and 2011. The scale is strongly associated with the Black Dog Institute in Australia.

The Black Dog Institute frequently makes its screening tools available for clinical use, often without a direct fee for non-commercial or routine clinical applications. However, users intending to use the scale for large-scale research projects or commercial purposes must consult the official Black Dog Institute website for specific licensing requirements and permissions.

The original instrument was previously available online via the Black Dog Institute website: http://www.blackdoginstitute.org.au/public/bipolardisorder/self-test.cfm.

Reference’s

• Parker, Gordon., Hadzi-Pavlovic, Dusan & Tully, Lucy. (2006). Distinguishing bipolar and unipolar disorders: An isomer model. Journal of Affective Disorders, 96, 67–73.
• Parker, G., Fletcher, K., Barrett, M., Manicavasagar, V., (2006). The Black Dog Institute Depression Clinic: a subtyping model in practice. Aust. Psychiatry 14 (3), 300–303.
• Parker, Gordon ., Fletcher, Kathryn ., Barrett, Melissa ., Synnott, Howe., Breakspear, Michael., Hyett, Matthew & Hadzi-Pavlovic, Dusan. (2008). Screening for bipolar disorder: The utility and comparative properties of the MSS and MDQ measures. Journal of Affective Disorders, 109; 83–89.
• Parker, G., Blanch, B., Fletcher, K., Greenfield, L. (2011). Evaluating the utility of a bipolar self-test screening measure. Australas Psychiatry, 19(4):317-20.
• Parker G, Fletcher K. In: Bipolar II disorder: modelling, measuring and managing. 2. Parker G, editor. Cambridge, UK; New York: Cambridge University Press; 2012. Is bipolar II disorder increasing in prevalence? pp. 62–69.

Items of the Bipolar Disorder Self-Assessment Test (Clinician Version)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

Question 1:

Firstly, have you had episodes of clinical depression – involving a period of at least 2 weeks where you were significantly depressed and unable to work or only able to work with difficulty -and had at least 4 of the following:

• Loss of interest and pleasure in most things
• Appetite or weight change
• Sleep disturbance
• Physical slowing or agitation
• Fatigue or low energy
• Feeling hopeless and helpless
• Poor concentration
• Suicidal thoughts?

If YES, proceed.

Question 2:

Do you have times when your mood ‘cycles’, that is, do you experience ‘ups’ as well as depressive episodes?

If YES, proceed.

Question 3:

during the ‘ups’ do you feel more ‘wired’ and ‘hyper’ than you would experience during times of normal happiness?

If YES, proceed.

Please complete the checklist below, rating the extent to which each item applies to you during such ‘up’ times.

1. Feel more confident and capable
2. See things in a new and exciting light
3. Feel very creative with lots of ideas and plans
4. Become over-involved in new plans and projects
5. Become totally confident that everything you do will succeed
6. Feel that things are very vivid and crystal clear
7. Spend, or wish to spend, significant amounts of money
8. Find that your thoughts race
9. Notice lots of coincidences occurring
10. Note that your senses are heightened and your emotions intensified
11. Work harder, being much more motivated
12. Feel one with the world and nature
13. Believe that things possess a ‘special meaning’
14. Say quite outrageous things
15. Feel ‘high as a kite’, elated, ecstatic and ‘the best ever’
16. Feel irritated
17. Feel quite carefree, not worried about anything
18. Have much increased interest in sex (whether thoughts and/or actions)
19. Feel very impatient with people
20. Laugh more and find lots of things humorous
21. Read special significance into things
22. Talk over people
23. Have quite mystical experiences
24. Do fairly outrageous things
25. Sleep less and not feel tired
26. Sing
27. Feel angry

Scoring: Much more than usual = 2, Somewhat more than usual = 1, No more than usual = 0