When many observations of the same children in a classroom are made it is possible to determine the frequency of certain behaviors,such as how many times children speak in class.Which scale of measurement do these frequency data represent?
A) nominal
B) ordinal
C) interval
D) ratio

Question

Quizplus · Accepted Answer

The frequency data represents a ratio scale of measurement because there is a clear and meaningful zero point (i.e. zero times speaking in class) and equal intervals between values (i.e. each time a child speaks in class is the same interval). This is the highest level of measurement and allows for meaningful mathematical operations such as calculating means and standard deviations.

When Many Observations of the Same Children in a Classroom