Assessment Flashcards
(166 cards)
two key aspects of the adequacy of classification systems are…
validity and utility
Classification Validity
refers to the extent to which the principles used in classifying an entity are effective in capturing the nature of the entity
Classification Utility
refers to the usefulness of the resulting classification scheme
categorical approach to classification
an entity is determined to be either a member of a category or not.
The assumption underlying categorical classification is that there is an important qualitative difference between entities that are members of a category and those that are not
dimensional approach to classification
is based on the assumption that entities differ in the extent to which they possess certain characteristics or properties
This approach focuses on quantitative differences among entities and reflects the assumption that all entities can be arranged on a continuum to indicate the degree of membership in a category.
Within a dimensional classification system, the different dimensions may or may not be related, but it is essential that the dimensions reflect
significant higher-order constructs rather than simple descriptive features (e.g., a construct such as neuroticism, rather than specific psychological phenomena such as sadness, nervousness, loneliness, poor self-esteem, or poor self-confidence).
diagnostic system
a classification based on rules used to organize and understand diseases and disorders.
diagnosis
the result of applying the decision-making rules of a diagnostic system to the symptoms of a specific individual
prototype model
members of a diagnostic category may differ in the degree to which they represent the concepts underlying the category.
As an example, if you think of all the features pertinent to the category “mammals,” dogs are more prototypic of the category than are platypuses. Applying the prototype model to psychiatric diagnosis implies that not all people receiving the same diagnosis have exactly the same set of symptoms.
Accordingly, in contrast to strict neo-Kraepelinian assumptions, two people with the same diagnosis may not have exactly the same disorder (i.e., the same set of symptoms) and therefore may require somewhat different treatments
developmental psychopathology
a framework for understanding problem behaviour in relation to the milestones that are specific to each stage of a person’s development
underlines that biological and psychological systems are constantly changing
emphasizes the importance of major developmental transitions (such as starting daycare, learning to speak, going to high school, or moving into a long-term care facility) as well as disruptions to normal patterns of development (such as loss of a loved one, the effects of poverty, or exposure to trauma)
what is central to the developmental psychopatholpgy approach?
Central to this approach is a reliance on empirical knowledge of normal development. So, for example, in understanding problems in very young children, it is essential to be informed by research on a wide range of issues, including interpersonal attachment, cognitive development, and sleep patterns. Understanding difficulties that are evident in preschool-age children requires, in particular, knowledge of language development and of ways that adults promote children’s self-esteem and self-control. Problems in school-age children can be considered in the context of what we know about academic functioning, peer relationships, and harmonious families.
No diagnosis is based on a…
single symptom
-Diagnostic criteria always include a cluster of symptoms that co-occur
Unlike medical diagnostic systems, classification systems for mental disorders rely almost entirely on the…
observation of symptoms (mostly from self-report data).
the diagnosis of a disorder does not just require the co-occurrence of a set of statistically rare symptoms or behaviours; it also requires that…
what was the concept originally referred to
there is something wrong or dysfunctional and that this dysfunction causes harm to the individual or to those around him or her
the diagnosis of a disorder does not just require the co-occurrence of a set of statistically rare symptoms or behaviours; it also requires that…
what was the concept originally referred to?
there is something wrong or dysfunctional and that this dysfunction causes harm to the individual or to those around him or her
harmful dysfunction
Widiger has suggested that the concept of dyscontrol should be part of the definition of mental disorder - what is it?
what is the problem with this concept?
the resulting impairment must be involuntary or, at least, not readily controlled. This addition is important, especially in legal contexts, because it means that someone who intentionally and willfully engages in unacceptable behaviour such as sexually abusing a child or shooting participants at a summer camp would not be considered to have a mental disorder.
is difficult to operationalize. After all, how can you accurately determine whether another person is unable to control a behaviour or is simply choosing not to control the behaviour?
the WHO World Mental Health Survey collected data on the disability and treatment of mental and physical disorders Across countries, mental disorders were found to be…
more disabling than physical disorders such as chronic pain, heart disease, cancer, and diabetes. At the time of the interview, survey participants with mental disorders were much less likely to be receiving treatment for their disorders than were those with physical disorders, and this was especially true for lower-income countries
Modern theories of the etiology of mental disorders are all based on what type of model?
biopsychosocial model
in a longitudinal study of common fears, the impact of __________ factors that influenced fear intensity during childhood tended to diminish over time, whereas the impact of ___________ increased over time
genetic
life experiences
Which edition of the DSM was described as changing the entire focus of the field?
third
First, the manual was explicitly atheoretical, which allowed for the possibility of greater acceptance within the mental health field and for the introduction of concrete behavioural descriptions of most disorders. Second, the diagnostic criteria were much more explicit than they were previously, with lists of symptoms provided for each diagnosis. Third, as a significant part of the effort to improve upon the reliability of psychiatric diagnoses, thousands of patients and hundreds of clinicians were involved in field trials of the diagnostic system.
What approach does the DSM-5 use for classification?
largely based on a categorical approach to classification
However, because some disorders may be better represented by dimensional categorization, the classes of disorders were clustered with similar disorders
How are disorders clustered in the DSM-5?
Using the concepts of internalizing and externalizing disorders, disorders with anxiety, depressive, and somatic symptoms were grouped together (i.e., internalizing features), as were disorders with impulsive, disruptive conduct, and substance use symptoms (i.e., externalizing features)
What does it mean by a lifespan approach used in the DSM-5?
listing disorders more frequently diagnosed in childhood at the beginning of the manual, and disorders more frequently diagnosed among older adults at the end of the manual
The DSM-5 includes how many main diagnostic classes?
20