Clinical & Abnormal Psychology: History, Theories, Disorders & Therapy
What is Clinical Psychology?
Clinical psychology is generally defined as the branch of psychology concerned with studying and theorizing mental illness and psychological disorders, as well as assessing and treating those who have them. This study and research into cognitive and psychiatric disorders is often called psychopathology or abnormal psychology. Abnormal denotes the non-normative character of these illnesses relative to the baseline mental health of most individuals, usually causing distress to the afflicted and those around them.
The psychological disorders recognized by clinical psychologists are generally grouped into one of several categories:
- Anxiety — Phobias, Social and Generalized Anxiety, Panic and Obsessive Compulsive Disorders
- Dissociative — Depersonalization/Derealization, Dissociative Amnesia, Dissociative Identity Disorder
- Eating — Anorexia and Bulimia Nervosa, Bing-Eating Disorder
- Mood — Manic Episodes, Cyclothymic and Bipolar Disorders (I and II), Major and Persistent Depressive Disorders
- Neurocognitive — Delirium, Alzheimer's, Huntington's, and Parkinson's Diseases
- Neurodevelopmental — Attention-Deficit/Hyperactivity, Autism Spectrum, Conduct, and Oppositional Defiant Disorders
- Personality — Antisocial, Avoidant, Borderline, Dependent, Histrionic, Narcissistic, Paranoid, Schizoid, and Schizotypal Personality Disorders
- Psychotic — Schizophrenia, Brief Psychotic, Delusional, Schizoaffective, and Schizophreniform Disorders
- Sexual — Male Hypoactive Sexual Desire and Female Sexual Interest/Arousal Disorders, Gender Dysphoria, Paraphilic Disorders
- Somatic Symptom — Somatic Symptom, Illness Anxiety, Conversion, and Factitious Disorders
- Substance Abuse — Alcohol Use, Substance Use, and Gambling Disorders
The ultimate goal of both clinical and abnormal psychologies is the restoration of the mental health of the patient or safety and good quality of life for those who cannot be rehabilitated. This goal may be accomplished by using any number or combination of psychotherapies, though even with therapy and medication, any of these disorders may be a lifelong ordeal for the patient.





Clinical & Abnormal Psychology Topics
Assessment & Diagnosis of Disorders
Learn about clinical assessments. Understand what a clinical assessment is, identify how psychological evaluation works, and see an example of a clinical assessment.
Mood Disorders
Learn about mood disorders. Understand the variety of disorders under the mood disorder umbrella, as well as the symptoms, causes, and potential treatments.
Trauma and Stress Related Disorders
Learn about trauma and stress-related disorders. Explore the causes, symptoms, and treatments of trauma and stressor-related disorders with various examples.
Clinical Psychology Resources
The broad nature of abnormal and clinical psychology combined means that hundreds of resources are accessible for students of the discipline. Through Study.com, budding psychologists can earn college credit toward their degrees in clinical psychology, decide on a theoretical orientation, or learn details about counseling and psychotherapy. Quizzes, study guides, and flashcards will keep students of all ages engaged in this in-depth study of the human mind.
Clinical Psychology Courses
Clinical psychology covers a myriad of subjects from biology and behavior, to disorders and therapies, even from the perspective of abnormal psychology alone. For this reason, hundreds of lessons related to the field are available at the high school and college levels. These courses speak to every aspect of clinical psychology, from brain science to the psychodynamics of personality and models of abnormal behavior and perception.
Psychology 106: Abnormal Psychology
This college-level course is an introduction to non-normative behavior and psychological disorders for students pursuing a career in clinical psychology. Chapters cover clinical research, many models of abnormal behavior, and specific disorders.
Psychology 306: Advanced Abnormal Psychology
This course is the next step for college students who enjoyed the content in Psych 106. Advanced Abnormal Psychology examines the major anxiety, mood, personality, and other disorders in even greater detail, along with how to assess and treat such illnesses.
Psychology 310: Psychology of Personality
Personality, the mix of beliefs, moods, and behaviors that characterize who people are, is the focus of this college-level course. Theories of personality, from the psychoanalytic to the biological, are discussed, along with the details of personality traits.
Psychology 311: Physiological Psychology
This college course examines the anatomy and physiology of the brain and its relationship with the human mind. Lessons cover neurons, the sensory and nervous systems, and the impact of trauma, sleep, and drugs on these systems and the brain.
Psychology: High School
High school students interested in psychology will find well over 250 lessons on the field in this course. Topics include the history of the discipline, research practices, the underlying brain biology, and information on social and cognitive development.
Additional Courses
Clinical & Abnormal Psychology Test Prep for Teachers and Students
Test Prep
Students hoping to earn college credit for prior learning as well as those planning to pursue graduate work in psychology can benefit from Study.com's test preparation guides. These courses cover the basics of clinical psychology and explore various types of abnormal psychology including assessment and treatment of several types of disorders. After taking advantage of these materials, test-takers will feel prepared and confident as they sit for these exams.
Tests
-
TECEP Abnormal Psychology: Study Guide & Test Prep
Prepare for the TECEP Abnormal Psychology test by reviewing assessment and treatment of disorders such as anxiety, mood, substance abuse, and more.
-
GRE Psychology: Study Guide & Test Prep
Study learning, language, memory, thinking, neuroscience, clinical and abnormal psychology, and development to prepare for the GRE Psychology test.
Frequently Asked Questions
-
What exactly does a clinical psychologist do?
A clinical psychologist scientifically studies and theorizes mental illness. They also assess, classify, and treat psychological disorders in patients. Treatment may include various techniques and practices in the context of psychotherapy, the medical assistance of a psychiatrist, or both.
-
What is meant by abnormal psychology?
Abnormal psychology is the theory and study of psychological disorders and mental illnesses. In particular, abnormal refers not to the patient but rather to the non-normative behaviors from mental illness that have become disturbing to themselves and others.
What makes our learning platform different
Learn faster
Short 5-minute lessons make it easier to pay attention and remember what you learned
Stay motivated
Animated videos bring concepts to life with examples and a touch of humor
Study smarter
Expert teachers help you focus on what's most important so you are confident and prepared