SCENARIO 12-8
a Study Was Conducted to Determine Whether the Use

question 112

Multiple Choice

SCENARIO 12-8
A study was conducted to determine whether the use of seat belts in motor vehicles depends on the educational status of the parents.A sample of 792 children treated for injuries sustained from motor vehicle accidents was obtained, and each child was classified according to (1) parents' educational status (College Degree or Non-College Degree) 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. $$\begin{array} { r | | c c } & \begin{array} { c } \text { Non-College } \\\text { Degree }\end{array} & \begin{array} { c } \text { College } \\\text { Degree }\end{array} \\\hline \text { Seat belts not worn } & 31 & 148 \\\text { Seat belts worn } & 283 & 330\end{array}$$
-Referring to Scenario 12-8, which test would be used to properly analyze the data in this experiment?

• A) \(x ^ { 2 }\) test for independence
• B) \(x ^ { 2 }\) test for differences among more than two proportions
• C)Wilcoxon rank sum test for independent populations
• D)Kruskal-Wallis rank test

---

Definitions:

Critical Periods

Specific times during early life when the presence or absence of certain experiences can have profound and lasting effects on the development of physiological or behavioural traits.

Developmental Change

Developmental change encompasses the physical, cognitive, and emotional growth and transformations that occur in human beings throughout their lifespan, from birth to old age.

Socioeconomic Status

An individual's or family's economic and social position in relation to others, based on income, education, and occupation.