What Prompted the Early Installation of Metal Detectors in Airports

question 90

Multiple Choice

What prompted the early installation of metal detectors in airports?

• A)Bombs made by terrorists and carried aboard
• B)The use of box cutters by hijackers
• C)Potential hijackers using guns
• D)Terrorists using explosives

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Definitions:

Factor Analysis

Factor Analysis is a statistical method used to describe variability among observed, correlated variables in terms of a potentially lower number of unobserved variables called factors.

Single Trait

Refers to focusing on one characteristic feature of an individual or system for study or analysis.

Normal Curve

A symmetrical, bell-shaped curve that describes the distribution of many types of data; most scores fall near the mean (about 68 percent fall within one standard deviation of it) and fewer and fewer near the extremes. Also called a normal distribution.

Standardization

Defining uniform testing procedures and meaningful scores by comparison with the performance of a pretested group.