PSY404 Abnormal Psychology Assignment 1 for Fall 2026 is built around five case scenarios. Each scenario must be matched to one criterion used to identify abnormal behavior, with a justification for the match. The assignment carries 20 marks and the due date is November 06, 2026. The solution file linked below answers all five cases with their criteria and full justifications.
What Does the Solution File Cover?
Which Criterion Fits Sara and Bilal?
Both Sara and Bilal fit Dysfunction, also called Maladaptive Behavior. Sara is a school teacher who forgets important tasks, cannot maintain her daily schedule and cannot complete assigned tasks on time, which directly interferes with her job and everyday responsibilities. Bilal repeatedly misses deadlines, cannot complete assigned tasks and cannot maintain his routine, which breaks down his academic and personal functioning. Dysfunction applies when a pattern prevents a person from meeting routine daily demands, and both cases show exactly that kind of operational impairment.
Why Is Hammad a Case of Statistical Infrequency?
Hammad is a university student with an unusually high memory ability: he remembers lengthy lists of numbers and details of events far better than most students his age, and his classmates consider his ability unusual. Yet he performs his daily activities successfully and experiences no emotional difficulty because of it. That is Statistical Infrequency, or Deviance: abnormality defined purely by numerical rarity, sitting at the far end of a normal distribution curve. The case also teaches the important limit of this criterion, since statistical deviance alone does not mean pathology when the person functions perfectly well.
Which Cases Show Social Norms and Personal Distress?
Ali fits Violation of Social Norms, or Social Deviance: in a community where certain cultural practices are expected during family gatherings, he refuses to follow them and openly expresses differing opinions, which his family and community consider inappropriate conduct. Ayesha fits Personal Distress: she becomes extremely anxious before speaking in front of classmates, worries for several days, cannot concentrate on other activities, and feels deeply troubled by the experience and wants to overcome it. Personal distress focuses on subjective emotional pain rather than external behavior, and Ayesha’s anticipatory anxiety is a textbook example. Moral reasoning and social expectations also matter in educational settings, as shown in the PSY406 Assignment 1 solution on Kohlberg’s moral development stages.
How Do You Download the Solution File?
You can download the complete solution file from Google Drive using the link below. It contains all five case scenarios with their identified criteria and analytical justifications. Read each justification in full before submitting, since the marks depend on matching the right criterion with a sound reason, not just naming it.
Frequently Asked Questions
What are the main criteria for abnormal behavior?
The commonly taught criteria are statistical infrequency, violation of social norms, personal distress, and dysfunction or maladaptive behavior. No single criterion is enough on its own, which is why assignments ask you to match each case to the criterion it fits best and justify the match.
Can a rare ability count as abnormal?
Under statistical infrequency alone, yes: an extremely rare trait sits far from the average and counts as deviant in the statistical sense. But rarity without distress, dysfunction or norm violation is not a psychological disorder, which is exactly what Hammad’s case demonstrates.
How is dysfunction different from personal distress?
Dysfunction is about impaired functioning: the person cannot meet work, study or daily demands. Personal distress is about subjective suffering: the person feels troubled, anxious or pained. A case can show one without the other, and the justification must name which one the scenario actually shows.
Why does the justification matter as much as the label?
Because two criteria can look similar at first glance, for example distress versus dysfunction. The justification connects specific details of the scenario to the definition of the criterion, and that reasoning is what earns the marks.
Last updated: November 2026.
