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PSY 255 Abnormal Psychology – DSM-5, Assessment & Mental Disorders – 180 Questions

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This document contains approximately 180 verified exam questions and answers for PSY 255 Week 1 (2026), focusing on abnormal psychology foundations, DSM-5 classification, etiology of mental illness, assessment methods, and diagnostic reliability and validity. The material covers definitions of mental disorder, dysfunction, psychopathology, prevalence, comorbidity, stigma (public, self, felt, enacted), and core diagnostic principles outlined by the American Psychiatric Association. It also reviews historical models of mental illness (supernatural, somatogenic, psychogenic), trephination, asylum reform, deinstitutionalization, the medical model, and the biopsychosocial model. In addition, the document provides in-depth coverage of the DSM-5 and ICD comparison, categorical vs. dimensional approaches, reliability vs. validity, inter-rater reliability, discriminant validity, predictive validity, and case formulation. Assessment tools are thoroughly reviewed, including clinical interviews (structured, semi-structured, unstructured), mental status examination (MSE), SCID-5, intelligence testing (WAIS, WISC, Stanford-Binet), personality assessments (MMPI, Big Five/OCEAN model), and projective tests such as the Rorschach and TAT. The structured question-and-answer format supports mastery of terminology, diagnostic reasoning, and applied clinical concepts aligned with standard Abnormal Psychology textbooks used in undergraduate psychology programs. This resource is suitable for: PSY 255 Abnormal Psychology Introduction to Psychopathology Foundations of Clinical Psychology Mental Health Assessment Courses DSM-5 Diagnostic Systems Modules This document is especially beneficial for: Undergraduate psychology students Pre-clinical and counseling majors Students preparing for PSY 255 Week 1 exams Learners reviewing DSM-5 diagnostic principles Individuals studying psychological assessment and classification systems Keywords: PSY 255 Week 1 exam, abnormal psychology exam review, DSM 5 diagnostic criteria, psychological disorder definition, dysfunction and distress, etiology of mental illness, supernatural somatogenic psychogenic theories, biopsychosocial model, stigma and labeling theory, reliability vs validity psychology, inter rater reliability, discriminant validity, DSM vs ICD comparison, clinical interview types, mental status examination MSE, WAIS and WISC intelligence tests, Stanford Binet test, MMPI personality test, projective testing Rorschach TAT, psychological assessment tools

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PSY 255 Week 1 2026 Exam
Questions and Answers | A+
Score Assured



Mental disorder - 🧠 ANSWER ✔✔Condition characterized by thoughts,

feelings, and behaviors that create dysfunction


Dysfunction - 🧠 ANSWER ✔✔A disruption of a person's ability to live their

live productively or in a way that impairs relationships, ability to think

clearly, communicate with others, hold a job, or deal with stressful events

,Psychopathology - 🧠 ANSWER ✔✔Study of psychological disorders,

including their symptoms, etiology, and treatment; can also refer to

manifestation of psychological disorder


Etiology - 🧠 ANSWER ✔✔The causal description of all of the factors that

contribute to the development of a disorder or illness

According to the American Psychiatric Association (APA) (2013), a

psychological disorder is a condition that is said to consist of the following: -

🧠 ANSWER ✔✔-There are significant disturbances in thoughts, feelings,

and behaviors.

-The disturbances reflect some kind of biological, psychological, or

developmental dysfunction.

-The disturbances lead to significant distress or disability in one's life.

-The disturbances do not reflect expected or culturally approved responses

to certain events.

Jackie frequently talks to herself while she is working on her math

homework. Her roommate sometimes hears her and wonders if she is

okay.

-Probably disorder

,-Need more information


-Probably no disorder - 🧠 ANSWER ✔✔Need more information


Harriet gets depressed during the winter months when the light is low. She

sometimes stays in her pajamas for the whole weekend, eating chocolate

and watching TV. She usually gains weight during this time, but she still

manages to take care of her schoolwork during this time.

-Probably disorder

-Need more information


-Probably no disorder - 🧠 ANSWER ✔✔Probably no disorder


Charlie believes that the noises made by cars and planes going by outside

his house have secret meanings. He is convinced that he was involved in

the start of a nuclear war and that the only way for him to survive is to find

the answer to a difficult riddle.

-Probably disorder

-Need more information


-Probably no disorder - 🧠 ANSWER ✔✔Need more information




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, Frank seems to be afraid of a lot of things. He worries about driving on the

highway and about severe weather that may come through his

neighborhood. But mostly he fears mice, checking under his bed frequently

to see if any are present.

-Probably disorder

-Need more information


-Probably no disorder - 🧠 ANSWER ✔✔Need more information


A psychological disorder encompasses all of the behaviors below except:

-Dysfunctional patterns of thought, emotion, and behavior that cause

significant distress

-Culturally appropriate behavior that doesn't cause distress or impair

normal functioning

-Behavior that is considered deviant in a person's culture or society


-Impairment of a person's normal functioning - 🧠 ANSWER ✔✔Culturally

appropriate behavior that doesn't cause distress or impair normal

functioning

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