Final answer:
Quantitative disorders are conditions that can be numerically expressed, such as genetic abnormalities affecting gene count or psychological disorders that can be measured by frequency and amount of substance use. Quantitative data is often utilized in describing and analyzing these disorders, utilizing counts and measureable figures.
Step-by-step explanation:
Quantitative disorders refer to conditions that can be expressed numerically, often involving a quantifiable alteration within the body's systems or biochemistry. For instance, in the context of genetic disorders, a quantitative disorder may pertain to an abnormality caused by a mutation in one or more genes or by a chromosomal alteration. Such disorders are often characterized by a measurable change in genetic material, leading to observable and countable symptoms or outcomes.
In another domain, specifically within the scope of psychological disorders, we might refer to the criteria laid out in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). Substance use disorders, as defined by the DSM-5, can be quantified by the excessive use of substances, which can be measured numerically, for example, by the frequency and amount of substance use, despite harmful consequences.
Within the field of data analysis, quantitative data itself can assess or represent disorders by counting instances or measuring the extent to which a disorder manifests. This is seen in data that are the result of counting, such as the number of phone calls received, the number of classes a person takes per year, IQ scores, or the number of correct answers on a quiz.