Family Studies Are Often Used to Help Determine Whether a Psychological

question 111

Multiple Choice

Family studies are often used to help determine whether a psychological disorder has a genetic component. Which of the following patterns is typical for a disorder that is influenced by genetics?

• A)Siblings of the person with the disorder are more likely to have the disorder than cousins, and cousins are just as likely to have the disorder as the general public.
• B)Siblings of the person with the disorder will almost always have the same or similar disorders, and cousins are more likely than the general public to have disorders.
• C)Siblings of the person with the disorder are more likely than cousins to have the disorder, and cousins are more likely to have the disorder than the general public.
• D)Siblings will almost always have the same or similar disorders, though cousins may have a similar rate of the disorder as the general public.

---

Definitions:

Distribution

The way in which values are spread or distributed across a range in a dataset.

Measure of Variability

A measure of variability is a summary statistic that represents the amount of dispersion in a dataset, examples include range, variance, and standard deviation.

Measure of Central Tendency

A statistical measure that identifies a single value as representative of an entire distribution of data, such as the mean, median, or mode.

Statistic

A numerical value that summarizes or describes an aspect of a sample.