Instruction 15-1
a Study Published in the Australian Journal of Public

question 108

Multiple Choice

Instruction 15-1
A study published in the Australian Journal of Public Health was conducted to determine whether the use of seat belts in motor vehicles depends on ethnic background.A sample of 792 children treated for injuries sustained from motor vehicle accidents was obtained,and each child was classified according to (1) ethnic background (English Speaking Background (ESB) or Non English Speaking Background (NESB) ) and (2) seat belt usage (worn or not worn) during the accident.The number of children in each category is given in the table below.
$$\begin{array} { | l | c | c | } \hline & \text { NESB } & \text { ESB } \\\hline \text { Seat belts wom } & 31 & 148 \\\hline \text { Seat belts not worn } & 283 & 330 \\\hline\end{array}$$
-Referring to Instruction 15-1,the calculated test statistic is

• A)72.8063.
• B)48.1849.
• C)-0.9991.
• D)-0.1368.

---

Definitions:

Developmentally

Pertaining to the process of growth and change over the lifespan, including physical, cognitive, emotional, and social development.

Oral Stage

In psychoanalytic theory, the first stage of psychosexual development, where the mouth is the primary source of gratification.

Defense Mechanism

Psychological strategies employed by individuals to cope with reality and maintain self-image by unconsciously denying or distorting reality.

Reaction Formation

A psychological defense mechanism in which a person unconsciously replaces unacceptable thoughts or feelings with their opposites.