Psychology Case Studies Quiz

Based on DSM-5-TR, what is the most likely diagnosis for a 23-year-old man who has been experiencing hallucinations and paranoid delusions for the past two years? He believes that government agents are following him and sending him secret messages through TV broadcasts. His parents note that he has become increasingly withdrawn and disorganized in his speech. However, during this time, he has also had several major depressive episodes lasting for months.

What is the best diagnosis based on DSM-5-TR for a 32-year-old combat veteran who reports having nightmares and intrusive thoughts about an explosion that killed members of his unit. He avoids crowded places, has frequent mood swings, and becomes easily startled by loud noises. He also constantly worries about his future and struggles to sleep.

A 28-year-old woman presents with periods of elevated mood, high energy, and impulsivity lasting about four days. During these times, she sleeps very little but still feels energized, talks excessively, and spends large amounts of money impulsively. However, she has also experienced severe depressive episodes lasting weeks. Her job performance has declined significantly, but she has never had a full manic episode. What is the most likely diagnosis?

A 40-year-old woman collects newspapers, magazines, and other items, filling every room in her home. She refuses to discard anything, even if it is broken or no longer useful. When family members try to clean her home, she becomes extremely anxious and distressed. What is the most appropriate DSM-5-TR diagnosis?

A 10-year-old boy struggles to stay focused in class, often gets up from his seat, interrupts others, and frequently loses his school supplies. His teacher reports that he is easily distracted and has trouble following instructions. His parents say he has always been "high-energy," but he does not display significant defiant behavior toward authority figures. What is the most likely diagnosis?

A 29-year-old woman survived a violent car accident six months ago and now has frequent flashbacks, nightmares, and avoids driving. She experiences intense anxiety and dissociation when near roads and highways. Which treatment is most appropriate?

A 21-year-old man with paranoid schizophrenia has been taking a first-generation antipsychotic for two years but has developed involuntary facial and tongue movements. What is the best next step?

A researcher is studying the long-term effects of childhood trauma on the risk of developing Major Depressive Disorder (MDD) in adulthood. Which research method is most appropriate?

A clinical researcher is conducting a study on childhood trauma and PTSD risk. The study involves interviewing participants about past traumatic events. What is the primary ethical concern?