A Research Company Frequently Monitors Trends in the Use of Social

question 23

Essay

A research company frequently monitors trends in the use of social media by American Adults. The results of one survey of 1846 randomly selected adults looked at social media use versus age group. The table summarizes the survey results.
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { Age Group }$
$\text { Uses Social Media }\begin{array}{|l|c|c|c|c|r|}\hline & 18-29 & 30-49 & 50-64 & 65+ & \text { Total } \\\hline \text { Yes } & 328 & 417 & 288 & 114 & \mathbf{1 1 4 7} \\\hline \text { No } & 67 & 125 & 265 & 242 & \mathbf{6 9 9} \\\hline \text { Total } & \mathbf{3 9 5} & \mathbf{5 4 2} & \mathbf{5 5 3} & \mathbf{3 5 6} & \mathbf{1 8 4 6} \\\hline\end{array}$

-Identify the variables and tell whether each is categorical or quantitative.

---

Definitions:

Biological Model

A perspective in psychology and psychiatry that attributes complex phenomena, including mental disorders, to biological factors.

Cortex

The outer layer of the brain, responsible for higher-order functions such as thought, memory, and decision-making.

Brain

The organ in the head of living beings that controls thought, memory, feelings, and activity, central to the nervous system.

Models of Abnormality

Theoretical frameworks used to understand the causes and treatment of mental health disorders, including biological, psychological, and social factors.