PSY 240 CORE EXAMS SET 2026/2027 QUESTIONS AND
SOLUTIONS RATED A+
✔✔What are the DSM criteria for BDD? - ✔✔Preoccupation with perceived physical
flaw; repetitive behaviors (mirror checking, grooming); significant distress or impairment;
not better explained by an eating disorder.
✔✔What is the prevalence of Body Dysmorphic Disorder? - ✔✔1.7-2.9%
✔✔What is the typical onset age for BDD? - ✔✔Adolescence.
✔✔What is the impact of BDD on individuals? - ✔✔40% are unable to work; high
suicide risk (80% have suicidal thoughts, 25% attempt suicide).
✔✔What is Hoarding Disorder? - ✔✔Persistent difficulty discarding possessions
regardless of value, leading to clutter.
✔✔What are the DSM criteria for Hoarding Disorder? - ✔✔Difficulty discarding
possessions; strong urge to save items; living spaces become cluttered; causes distress
or impairment.
✔✔What is the prevalence of Hoarding Disorder? - ✔✔2.6%
✔✔What is Trichotillomania? - ✔✔A hair-pulling disorder characterized by recurrent
pulling of hair, attempts to stop, and causing distress.
✔✔What is the prevalence of Trichotillomania? - ✔✔1.7%
✔✔What is Excoriation Disorder? - ✔✔A skin-picking disorder characterized by
recurrent skin picking causing lesions, attempts to stop, and causing distress.
✔✔What is the prevalence of Excoriation Disorder? - ✔✔2.1-3.4%
✔✔What are the common trauma triggers for PTSD? - ✔✔Combat, natural disasters,
accidents, sexual assault, terrorism, torture.
✔✔What are the DSM criteria for PTSD? - ✔✔Requires symptoms from four clusters:
intrusion, avoidance, negative cognition/mood, arousal/reactivity.
✔✔What is the lifetime prevalence of PTSD? - ✔✔7-12%
✔✔What is Dissociative Amnesia? - ✔✔Inability to recall important autobiographical
information related to trauma.
, ✔✔What are the types of Dissociative Amnesia? - ✔✔Localized, Selective, Generalized,
Continuous.
✔✔What is the prevalence of Dissociative Amnesia? - ✔✔2% annual incidence.
✔✔What is Dissociative Identity Disorder (DID)? - ✔✔A disorder characterized by two or
more distinct personalities and memory gaps.
✔✔What is the prevalence of Dissociative Identity Disorder? - ✔✔≤1%, and it is 3 times
more common in women.
✔✔What is Depersonalization? - ✔✔Feeling detached from oneself.
✔✔What is Derealization? - ✔✔Feeling that surroundings are unreal.
✔✔What is the prevalence of Depersonalization/Derealization Disorder? - ✔✔2%
lifetime prevalence, most common in adolescents and young adults.
✔✔What is the difference between emotion and mood? - ✔✔Emotion is an intense
short-term feeling directed at a specific source, while mood is a longer-lasting emotional
state that may not have a clear trigger.
✔✔What are the DSM-5 categories of Mood Disorders? - ✔✔Major Depressive
Disorder, Persistent Depressive Disorder, Bipolar I Disorder, Bipolar II Disorder,
Cyclothymic Disorder, Premenstrual Dysphoric Disorder, Disruptive Mood Dysregulation
Disorder.
✔✔What are the criteria for a Major Depressive Episode? - ✔✔Diagnosis requires 5 or
more symptoms for at least 2 weeks, including depressed mood or loss of
interest/pleasure.
✔✔What are common symptoms of Major Depressive Disorder? - ✔✔Depressed mood,
loss of interest, weight/appetite change, insomnia/hypersomnia, fatigue, feelings of
worthlessness, difficulty concentrating, recurrent thoughts of death.
✔✔What is the lifetime prevalence of Major Depressive Disorder? - ✔✔20%.
✔✔What is the yearly prevalence of Major Depressive Disorder in the U.S.? - ✔✔8%.
✔✔How does gender affect the prevalence of Major Depressive Disorder? - ✔✔Women
are twice as likely as men to experience it.
✔✔What is Persistent Depressive Disorder (Dysthymia)? - ✔✔Chronic, less severe
depression lasting 2 years or longer.
SOLUTIONS RATED A+
✔✔What are the DSM criteria for BDD? - ✔✔Preoccupation with perceived physical
flaw; repetitive behaviors (mirror checking, grooming); significant distress or impairment;
not better explained by an eating disorder.
✔✔What is the prevalence of Body Dysmorphic Disorder? - ✔✔1.7-2.9%
✔✔What is the typical onset age for BDD? - ✔✔Adolescence.
✔✔What is the impact of BDD on individuals? - ✔✔40% are unable to work; high
suicide risk (80% have suicidal thoughts, 25% attempt suicide).
✔✔What is Hoarding Disorder? - ✔✔Persistent difficulty discarding possessions
regardless of value, leading to clutter.
✔✔What are the DSM criteria for Hoarding Disorder? - ✔✔Difficulty discarding
possessions; strong urge to save items; living spaces become cluttered; causes distress
or impairment.
✔✔What is the prevalence of Hoarding Disorder? - ✔✔2.6%
✔✔What is Trichotillomania? - ✔✔A hair-pulling disorder characterized by recurrent
pulling of hair, attempts to stop, and causing distress.
✔✔What is the prevalence of Trichotillomania? - ✔✔1.7%
✔✔What is Excoriation Disorder? - ✔✔A skin-picking disorder characterized by
recurrent skin picking causing lesions, attempts to stop, and causing distress.
✔✔What is the prevalence of Excoriation Disorder? - ✔✔2.1-3.4%
✔✔What are the common trauma triggers for PTSD? - ✔✔Combat, natural disasters,
accidents, sexual assault, terrorism, torture.
✔✔What are the DSM criteria for PTSD? - ✔✔Requires symptoms from four clusters:
intrusion, avoidance, negative cognition/mood, arousal/reactivity.
✔✔What is the lifetime prevalence of PTSD? - ✔✔7-12%
✔✔What is Dissociative Amnesia? - ✔✔Inability to recall important autobiographical
information related to trauma.
, ✔✔What are the types of Dissociative Amnesia? - ✔✔Localized, Selective, Generalized,
Continuous.
✔✔What is the prevalence of Dissociative Amnesia? - ✔✔2% annual incidence.
✔✔What is Dissociative Identity Disorder (DID)? - ✔✔A disorder characterized by two or
more distinct personalities and memory gaps.
✔✔What is the prevalence of Dissociative Identity Disorder? - ✔✔≤1%, and it is 3 times
more common in women.
✔✔What is Depersonalization? - ✔✔Feeling detached from oneself.
✔✔What is Derealization? - ✔✔Feeling that surroundings are unreal.
✔✔What is the prevalence of Depersonalization/Derealization Disorder? - ✔✔2%
lifetime prevalence, most common in adolescents and young adults.
✔✔What is the difference between emotion and mood? - ✔✔Emotion is an intense
short-term feeling directed at a specific source, while mood is a longer-lasting emotional
state that may not have a clear trigger.
✔✔What are the DSM-5 categories of Mood Disorders? - ✔✔Major Depressive
Disorder, Persistent Depressive Disorder, Bipolar I Disorder, Bipolar II Disorder,
Cyclothymic Disorder, Premenstrual Dysphoric Disorder, Disruptive Mood Dysregulation
Disorder.
✔✔What are the criteria for a Major Depressive Episode? - ✔✔Diagnosis requires 5 or
more symptoms for at least 2 weeks, including depressed mood or loss of
interest/pleasure.
✔✔What are common symptoms of Major Depressive Disorder? - ✔✔Depressed mood,
loss of interest, weight/appetite change, insomnia/hypersomnia, fatigue, feelings of
worthlessness, difficulty concentrating, recurrent thoughts of death.
✔✔What is the lifetime prevalence of Major Depressive Disorder? - ✔✔20%.
✔✔What is the yearly prevalence of Major Depressive Disorder in the U.S.? - ✔✔8%.
✔✔How does gender affect the prevalence of Major Depressive Disorder? - ✔✔Women
are twice as likely as men to experience it.
✔✔What is Persistent Depressive Disorder (Dysthymia)? - ✔✔Chronic, less severe
depression lasting 2 years or longer.
