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Bipolar I, Bipolar II, and cyclothymic disorder are related but distinct, and the ASWB exam expects you to tell them apart. The key is knowing the difference between mania and hypomania, and how long symptoms last.
This guide breaks down each disorder using DSM-5-TR criteria, compares them side by side, covers ethical considerations in diagnosis, and includes practice questions to test your understanding.
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Quick answer: Bipolar I vs. Bipolar II vs. cyclothymia
- Bipolar I: at least 1 manic episode (1 week or more, or any length if hospitalized). Depressive episodes are common but not required.
- Bipolar II: at least 1 hypomanic episode (4 days or more) and at least 1 major depressive episode, with no history of mania.
- Cyclothymic disorder: at least 2 years (1 year in youth) of hypomanic and depressive symptoms that never meet full criteria for an episode.
- Key difference: mania causes marked impairment, hospitalization, or psychosis. Hypomania doesn’t.
Jump to: Mania vs. Hypomania · The Disorders · Comparison Chart · Study Strategies · Ethical Considerations · Practice Questions · FAQs
1) Mania vs. Hypomania
Both involve a distinct period of abnormally elevated, expansive, or irritable mood with increased energy or activity, plus at least 3 of the following (4 if mood is only irritable): inflated self-esteem or grandiosity, decreased need for sleep, being more talkative or pressured speech, racing thoughts or flight of ideas, distractibility, increased goal-directed activity or agitation, and risky activities like spending sprees or impulsive decisions.
| Manic Episode | Hypomanic Episode | |
|---|---|---|
| Duration | At least 1 week, most of the day, nearly every day, or any duration if hospitalized | At least 4 consecutive days |
| Severity | Marked impairment in functioning, or hospitalization needed, or psychotic features | A clear change in functioning noticeable to others, but no marked impairment or hospitalization |
| Psychosis | May be present | Not present. If psychosis is present, the episode is manic. |
Agents of Change packages include video and audio lessons, hundreds of practice questions, a personalized study plan, and 2 live study groups each month so you’ll be ready for test day!
2) Bipolar I, Bipolar II, and Cyclothymic Disorder
| Disorder | Key Features |
|---|---|
| Bipolar I disorder | At least 1 manic episode. Hypomanic or major depressive episodes may occur but aren’t required for diagnosis. Manic episodes can include psychotic features and often require urgent treatment. |
| Bipolar II disorder | At least 1 hypomanic episode and at least 1 major depressive episode, with no history of a manic episode. Bipolar II isn’t simply a “milder” form. Depressive episodes are often long and impairing, and people may spend more time depressed. |
| Cyclothymic disorder | For at least 2 years (1 year in children and adolescents), numerous periods of hypomanic symptoms and depressive symptoms that don’t meet full criteria for a hypomanic or major depressive episode. Symptoms are present at least half the time, with no symptom-free period longer than 2 months. Some people later develop Bipolar I or II. |
Also rule out substance or medication-induced bipolar disorder and medical causes. Note that a full manic episode that emerges during antidepressant treatment and persists beyond the medication’s effects counts toward Bipolar I.
3) Comparison Chart
| Bipolar I | Bipolar II | Cyclothymic Disorder | |
|---|---|---|---|
| Mania | Required | Never | Never |
| Hypomania | May occur | Required | Symptoms only |
| Major depression | Common, not required | Required | Never meets criteria |
| Duration requirement | Mania: 1 week or more | Hypomania: 4 days or more | 2 years or more (1 year in youth) |
| Psychosis | Possible | Only during depression | No |
Treatment typically includes mood stabilizers like lithium, certain antipsychotics, psychoeducation, and therapies like CBT, family-focused therapy, and interpersonal and social rhythm therapy. Antidepressants alone can trigger mania in some people, so they’re usually combined with a mood stabilizer. Social Workers support medication adherence, relapse prevention, and coordination with prescribers.
4) Study Strategies for the ASWB Exam
| Strategy | How to Do It |
|---|---|
| Know the criteria | Focus on duration and severity of mood episodes. Learn more about the DSM-5-TR and the ASWB exam. |
| Make comparison charts | Build a chart like the one above from memory to test yourself. |
| Practice with vignettes | Identify the type of episode first, then the diagnosis. Try role-playing scenarios with peers. |
| Use flashcards | Drill episode criteria and durations with our free ASWB flashcards, and read about using flashcards effectively. |
| Teach it | Explain the differences to a study partner. Agents of Change packages include 2 live study groups each month. |
| Plan your time | A personalized study plan helps you schedule review of topics like mood disorders. |
Agents of Change packages also include video and audio lessons, hundreds of practice questions with rationales, four full-length, 122-question practice exams, and access until you pass.
5) Ethical Considerations in Diagnosing Mood Disorders
| Consideration | What It Involves |
|---|---|
| Informed consent and autonomy | Explain the assessment process, what a diagnosis means, and treatment options in clear language, and involve clients in decisions. |
| Avoiding misdiagnosis | Symptoms can overlap with major depressive disorder, ADHD, borderline personality disorder, and substance use. Use a thorough history, standardized tools, collateral information with consent, and collaboration with prescribers. |
| Cultural humility and bias | Culture can shape how symptoms are expressed and understood. Be aware of how race, gender, and other factors can bias diagnosis. |
| Confidentiality | Share diagnostic information only as needed and with appropriate consent, and protect electronic records. |
| Stigma | Emphasize that a diagnosis is one part of a person’s identity, and connect clients to support. |
| Safety | Assess suicide risk, which is elevated in bipolar disorders, and know your state’s criteria and procedures for involuntary treatment when there’s imminent danger. |
| Competence | Stay current through CE, supervision, and consultation, and practice within your scope. |
6) Practice Questions
Question 1: A client reports a week-long period of significantly elevated mood, increased energy, and impulsive behavior that caused serious problems at work, followed by several weeks of severe depression. What diagnosis should the Social Worker FIRST consider?
A) Bipolar I disorder
B) Bipolar II disorder
C) Cyclothymic disorder
D) Major depressive disorder
Correct Answer: A) Bipolar I disorder
Rationale: A week-long elevated mood with marked impairment is a manic episode, and a single manic episode is enough for Bipolar I. Bipolar II requires hypomania without mania, cyclothymic disorder involves symptoms that never meet full episode criteria, and major depressive disorder excludes manic episodes.
Question 2: A client describes 5 days of elevated mood, little need for sleep, and increased productivity that coworkers noticed, but no problems functioning. She also had a major depressive episode last year. Which diagnosis is MOST likely?
A) Bipolar I disorder
B) Bipolar II disorder
C) Cyclothymic disorder
Correct Answer: B) Bipolar II disorder
Rationale: Four or more days of elevated mood without marked impairment is a hypomanic episode. Hypomania plus a major depressive episode, with no history of mania, fits Bipolar II.
Question 3: A client with Bipolar I disorder tells the Social Worker he stopped taking his medication because he misses feeling energetic. What should the Social Worker do FIRST?
A) Explore his concerns about the medication and its effects
B) Tell him he must take his medication
C) Call his psychiatrist to report nonadherence
Correct Answer: A) Explore his concerns about the medication and its effects
Rationale: Exploring the client’s concerns respects his autonomy and helps identify barriers to adherence. The Social Worker can then help him communicate with his prescriber.
Use our six-step answer strategy on diagnosis questions. Want more practice? Start with our free ASWB practice questions.
7) FAQs: Bipolar Disorders and the ASWB Exam
What’s the fastest way to tell these disorders apart?
First identify the highest mood episode: mania means Bipolar I, hypomania plus major depression means Bipolar II, and ongoing symptoms that never meet full episode criteria for 2 years means cyclothymic disorder.
Is Bipolar II just a milder version of Bipolar I?
No. The elevated mood episodes are less severe, but depressive episodes in Bipolar II can be long and seriously impairing. It’s a distinct diagnosis, not simply a milder one.
How do cultural factors affect diagnosis?
Culture influences how people describe and interpret symptoms and whether they seek help. Use culturally appropriate assessment, ask about the client’s own understanding of their experiences, and be alert to bias that can lead to misdiagnosis.
8) Conclusion
To distinguish Bipolar I, Bipolar II, and cyclothymic disorder, start with the type of mood episode, then check duration and severity. Combine that knowledge with ethical, culturally responsive assessment and attention to safety, and you’ll be ready for these questions on the ASWB exam and in practice.
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About the Instructor, Dr. Meagan Mitchell: Meagan is a Licensed Clinical Social Worker and has been providing individualized and group test prep for the ASWB for over 11 years. From all of this experience helping others pass their exams, she created the Agents of Change course to help you prepare for and pass the ASWB exam!
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Disclaimer: This content has been made available for informational and educational purposes only. This content is not intended to be a substitute for professional medical or clinical advice, diagnosis, or treatment.
