Which of the Following Is an Example of a Diathesis-Stress Model?
If you are trying to find out which of the following is a diathesis-stress model, then let’s get down to the nitty gritty, you need to find a pre-existing interaction with a major stressor. A biological, genetic, psychological, or other form of pre-existing vulnerability will not have necessarily cause a psychological disorder to emerge. The classic model suggests that major stressors can interact with this vulnerability and lead to symptoms or disorder.
In general, the most typical form of a multiple choice question will consist of a situation with a person who is likely to have a disorder, has an incident stressor, and then has symptoms. For instance, an individual who has a pre-existing risk of clinical depression develops clinical depression after a stressful life event.
The important point is that genetic risk alone is not the whole model, and stress alone is not the whole model. The interaction is what makes the scenario a classic example.
What Is the Diathesis-Stress Model?
The diathesis-stress model is a tool psychologists use to explain why some individuals develop psychological symptoms or disorders following stressful events, yet others who experience the same stressors may not.
“The term diathesis refers to a susceptibility or predisposition to something.” In psychology, that susceptibility can be biological or genetic but can also be psychological in nature, such as psychological traits or other fairly stable individual differences (cognitive styles, for example).”
Stress is the stressful experiences that are threatening, demanding and often cause great strain on a person. Large life events, trauma and hardship can cause stress in some context and other stressors in others.
The basic idea can be represented as:
Vulnerability (diathesis) + stressful experience → increased likelihood of psychological symptoms
The model is referred to, at times, as the vulnerability-stress model or stress-diathesis model. According to the American Psychological Association, Dictionary of Psychology, the stress-vulnerability model is, “An approach that suggests that a predisposition and psychosocial factors may, in combination, increase the risk of symptomatic episodes.
Crucially, the model describes a greater likelihood, not a guarantee. So if you have a vulnerability, it does not mean you will necessarily end up with a disorder.
Which of the Following Is an Example of a Diathesis-Stress Model?
A classic example would be:
A person has a pre-existing vulnerability to depression and develops depressive symptoms after experiencing a major stressful life event.
Why does this fit?
- The pre-existing vulnerability represents the diathesis.
- The major stressful event represents the stress component.
- The development of symptoms following the stressor demonstrates the interaction between the two.
This is the pattern to look for when answering which of the following is an example of a diathesis-stress model?
But a choice which contains only one of these factors is not very complete. For example, telling you that a person has a genetic risk of depression only describes a vulnerability, but it does not automatically show the interaction provided by the model.
Similarly, one cannot describe a person as having a stressor unless an appropriate vulnerablitity is intended as part of the explanation.
The 3-Part Test for Identifying the Correct Answer
When you see a psychology multiple-choice question asking which of the following is an example of a diathesis-stress model?, use this three-part test.
1. Look for a vulnerability
First, identify whether the person has a predisposition or susceptibility.
The scenario might mention:
- Genetic risk
- Biological vulnerability
- A personality characteristic
- A cognitive vulnerability
- An established predisposition
- Other relatively stable factors associated with increased susceptibility
Do not assume that the word “diathesis” always means genes. OpenStax explains that a diathesis can also be psychological, such as a tendency toward pessimistic or self-defeating thinking.
2. Look for a stressor
Next, identify the stressful experience.
The scenario might involve:
- A major life change
- Trauma
- Significant adversity
- Relationship difficulties
- Loss
- Serious environmental pressure
- Another substantial psychological stressor
The stressor should be meaningful in the context of the question. The model is not simply a claim that every mildly inconvenient event causes a disorder.
3. Look for the interaction and outcome
Finally, ask whether the scenario connects the vulnerability and stressor with an increased likelihood of symptoms or disorder. Students can reinforce this concept by working through a psychology practice question on the diathesis-stress model , which illustrates how a pre-existing vulnerability and a major life stressor combine to increase the likelihood of psychological symptoms.
This is the most important step.
A useful memory formula is:
Vulnerability + Stressor + Outcome = Classic Diathesis-Stress Example
If all three pieces are present, the answer is much more likely to represent the model.
Why This Example Fits the Model
Consider the example again:
A person has a vulnerability to depression, experiences a major stressful event, and subsequently develops depressive symptoms.
The first diathesis is present. This means that the individual already has some kind of predisposition to a psychological disorder.
Next we get to stress: Something happens that causes the person to be under a lot of mental or physical pressure.
The last part links them together. The challenge happens on a person who already has a relevant vulnerability and that combination is related to the emergence of symptoms.
This interaction is key to the traditional version of the model. In the Open Stax version of the diathesis-stress model, it’s described as “an underlying vulnerability along with stressful events and stresses” and “the level of stress needed may depend on the severity of the diathesis, or vulnerability.”
Why Some Answer Choices Do Not Fit
One of the biggest mistakes in questions about which of the following is an example of a diathesis-stress model? is choosing an answer simply because it mentions either genetics or stress.
Use this comparison:
| Scenario | Does It Clearly Demonstrate the Model? | Reason |
| A person has a genetic vulnerability but no stressor is mentioned | No, not by itself | The interaction with stress is missing |
| A person experiences a stressful event but no vulnerability is described | No, not by itself | The predisposition component is missing |
| A person experiences stress and later has symptoms, but no vulnerability is identified | Not necessarily | The scenario does not establish the classic vulnerability-stress interaction |
| A person has a predisposition, experiences significant stress, and develops related symptoms | Yes | Vulnerability and stress are connected to the outcome |
| A person has a psychological vulnerability and later experiences significant stress associated with symptoms | Yes | A diathesis does not have to be genetic |
This distinction is particularly useful for exam questions because distractors often contain one correct concept while leaving out another.
Does Diathesis Always Mean Genetic Risk?
No.
Genetic susceptibility might be one type of diathesis, but not the only kind.
The wider psychological literature also encompasses biological, cognitive, personality-related, and other vulnerability factors. An introduction to Science Direct – Psychological diatheses are more-or-less stable individual differences, such as personality traits and cognitive styles that have the potential to increase vulnerability to stress and mental illness.
This is important to pay attention to when selecting which of the following is an example of a diathesis-stress model? Because one of the answer choices can refer to a psychological risk factor rather than a genetic factor.
Let us take an illustration: In an individual who is under extreme stress, a psychological rather than genetic deterioration can also take place because of a predefined link or learned response pattern. The absence of aetiology from genetics does not preclude this form of explanation.
How Much Stress Is Needed?
The diathesis-stress model isn’t an equation, where everyone requires the same level of stress before our symptoms express.
A central concept is vulnerability threshold.
The more vulnerable person might react more strongly to the stressful situation, whereas the person with fewer factors of vulnerability might have needed more stress before reacting the same way. According to Open Stax, in the model “there is an inverse relationship between the level of diathesis and the amount of stress required to produce a disorder.”
A simplified illustration looks like this:
| Vulnerability | Stress Exposure | General Interpretation |
| Lower | Lower | Lower likelihood of crossing a vulnerability threshold |
| Lower | Higher | Risk may increase |
| Higher | Lower | Risk may increase |
| Higher | Higher | Greater likelihood of an adverse outcome |
This is a conceptual explanation, not a mathematical prediction of whether a particular person will develop a disorder.
Real-World Psychology Examples
The diathesis-stress framework has been applied to several areas of psychological research.
Depression
Researchers also think about depression as a combination of a person’s vulnerability, and the stress they endure. As Open Stax explains, stressful life experiences can happen before a person becomes depressed, but not all people who are under significant stress become depressed, and that is one of the reasons why vulnerability factors seem to matter.
For an exam question, the important pattern is not simply:
“Stress can cause depression.”
Instead, the diathesis-stress framework asks whether individual vulnerability helps explain differences in responses to stressful experiences.
Anxiety
Individuals can carry traits that predispose them to anxiety then experience stress and experience an exacerbation of symptoms. The example is consistent with the model when the question explicitly states both stress and vulnerability and not stress alone.
Schizophrenia
It has also been employed in research and theory related to schizophrenia, as the biological or genetic predisposition may be coupled with environmental factors. Open Stax describes schizophrenia as a field of study where research has explored both genetic risk and environmental factors.
Again, here it is interaction – not predetermining genetics.
PTSD and Other Conditions
Examples of diathesis-stress models could be applied to explore the relationship between vulnerability and traumatic events in disorders like PTSD. The processes involved are specific to each disorder and so the model should not be generalized to other disorders.
Diathesis-Stress Model vs. Stress Alone
It is useful to distinguish the model from a simple stress explanation.
A stress-only explanation might say:
A person experienced a highly stressful event and then developed symptoms.
A diathesis-stress explanation asks an additional question:
Did the person’s pre-existing vulnerability interact with that stressful experience?
That difference is crucial when answering which of the following is an example of a diathesis-stress model?
If an answer choice talks only about a stressful event, it may describe the effects of stress without actually demonstrating the diathesis-stress framework.
Diathesis-Stress Model vs. Genetic Risk Alone
Genetic vulnerability can be part of the diathesis, but it is not synonymous with the entire model.
Consider two simplified scenarios:
Scenario A:
A person has a genetic predisposition associated with a psychological disorder.
Scenario B:
A person has a genetic predisposition and later experiences substantial stress that is associated with the development of symptoms.
Scenario B more clearly illustrates the classic diathesis-stress framework because it explicitly connects the predisposition with an environmental stressor.
This is one of the most common traps in questions asking which of the following is an example of a diathesis-stress model?
Can Protective Factors Change the Outcome?
Yes. It is not that vulnerability + stress necessarily causes a disorder.
Protective factors may shape a person’s response to stress. In the research and in classroom descriptions of the model, it is common to see social support and coping resources characterized as influences that may mitigate vulnerability or maintain a person below the symptom threshold.
And for this reason, since the model is probabilistic.
Two can go through the same things but turn out very differently.They may have greater vulnerability, or they may be exposed to different environmental conditions.
Common Mistakes on Diathesis-Stress Questions
Mistake 1: Choosing any answer involving stress
The presence of stress does not automatically establish the model.
Ask whether a relevant vulnerability is also described.
Mistake 2: Choosing any answer involving genetics
A genetic predisposition may represent a diathesis, but genetic risk alone does not demonstrate the full interaction.
Mistake 3: Assuming the diathesis must be genetic
Psychological vulnerabilities can also function as diatheses.
Mistake 4: Ignoring the outcome
Look for an explanation of how the vulnerability and stressor relate to the psychological outcome.
Mistake 5: Treating the model as deterministic
The model concerns vulnerability and increased likelihood. It does not mean that every vulnerable person who encounters stress will develop a disorder.
A Quick Exam Strategy
If you encounter which of the following is an example of a diathesis-stress model? during a psychology quiz or while reviewing study materials such as Quizlet-style flashcards, avoid searching only for the words “stress” or “genetic.”
Instead, scan each answer for three pieces:
V — Vulnerability
Is there a pre-existing predisposition?
S — Stressor
Is there a meaningful stressful experience?
O — Outcome
Does the scenario connect the two with psychological symptoms or increased risk?
The answer containing the clearest V + S + O pattern is the one that best matches the classic model.
This approach is more reliable than memorizing a single example because it allows you to solve unfamiliar questions.
For students exploring psychological concepts alongside other topics, finding useful educational resources can make complex ideas easier to understand and connect with everyday learning.
Diathesis-Stress Model and Related Concepts
| Concept | Main Focus |
| Biological perspective | Biological mechanisms and factors |
| Stress explanation | Effects of stressful experiences |
| Genetic risk | Inherited susceptibility or predisposition |
| Diathesis-stress model | Interaction between vulnerability and stress |
| Nature-nurture interaction | Broader relationship between inherited and environmental influences |
It is thus between simplistic explanations of a disorder as the result of a single cause and the more complete theories that invoke a number of interacting factors.
Current research also explores related frameworks such as differential susceptibility and vantage sensitivity, which raise somewhat different questions about individual responses to environmental factors. A 2026 scoping review characterizes these as related but separate lines of research that have emerged within the realm of environmental sensitivity and mental health.
What Psychology Sources Say About the Model
This basic description is consistent with standard references in psychology. According to theAPA Dictionary: “[s]tress-vulnerability model a theory that sees predisposition in combination with individual psychological and social factors that may contribute to the probability of symptomatic episodes.”
The Diathesis-Stress Model For example, Open Stax says the diathesis-stress model “Combines biological and psychosocial factors and emphasizes the interaction between an underlying predisposition and negative environmental or psychological experiences.” It adds that “in some cases, a diathesis is a psychological phenomenon” – not only a biological one.
2 These distinctions are important because a sketchy version of the study guide might list the diathesis as “genetic risk,” whereas a more complete psychology explanation includes a whole bunch of other vulnerabilities.
The best way to approach an exam question, then, is to concentrate on the link between predisposition and stress, rather than using one specific vulnerability.
Frequently Asked Questions
1.What is an example of the diathesis-stress model?
A classic example is a person with a pre-existing vulnerability to a psychological disorder who develops symptoms after experiencing significant stress. The scenario demonstrates vulnerability, stress, and their relationship.
2.What are the two main components of the diathesis-stress model?
The two core components are diathesis, meaning vulnerability or predisposition, and stress, meaning a significant environmental or psychological challenge.
3.Is genetic vulnerability alone an example of the diathesis-stress model?
Not by itself. Genetic vulnerability can represent the diathesis component, but the classic model focuses on how that vulnerability interacts with stress.
4.Can stress alone demonstrate the diathesis-stress model?
Not usually. A scenario describing stress without an underlying vulnerability does not clearly demonstrate the central vulnerability-stress interaction.
5.Does a diathesis always have to be genetic?
No. A diathesis can involve biological or genetic factors, but psychological vulnerabilities such as certain cognitive patterns can also be relevant.
6.What is the easiest way to identify a diathesis-stress example?
Look for three elements: pre-existing vulnerability, stressful experience, and an outcome connected to their interaction. The shortcut is V + S + O.
7.Does having a diathesis mean someone will develop a psychological disorder?
No. A diathesis indicates vulnerability or increased susceptibility, not certainty. Stress exposure, protective factors, environment, coping, and other influences can affect outcomes.
Conclusion
In replying which of the following is an example of a diathesis-stress model? Concentrate on the word interaction instead of just on one word in an alternative response.
For instance: a strong case study might include a known vulnerability, an irrelevant stressor, and a consequence of their interaction. The vulnerability can be biological or genetic, but can also be psychological as well.
Here’s the dumbest rule you’ve heard to quickly remember the:
Vulnerability + Stressor + Interaction/Outcome =Diathesis-Stress Model
Thus, if a question details a person who already has or is predisposed to a mental disorder, but their symptoms only flare up after stressful life events, that should represent the core principle of the model. This strategy also helps you discard options that note only stress, only genetic risk.
