Which one of the following is an example of a nominal level of measurement?
A) reaction time of an adult male measured before and after drinking an ounce of alcohol
B) a high school senior's first, second, and third choice of colleges to attend
C) classification of psychiatric patients as either "neurotic" or "psychotic"
D) estimating the number of red blood cells in a laboratory sample

Question

Quizplus · Accepted Answer

Nominal level of measurement involves categorizing data into distinct groups or levels without assigning any numerical value to those groups. Option C involves classifying psychiatric patients into two distinct groups ("neurotic" or "psychotic") without assigning any numerical value to those categories, making it an example of nominal level of measurement. The other options involve assigning numerical values to the data, making them examples of interval or ratio levels of measurement.

Which One of the Following Is an Example of a Nominal