CHES (Certified Health Education Specialist) Practice Exam 2026 - Free Health Education Specialist Practice Questions and Study Guide

Question: 1 / 400

What is the primary characteristic of interval level measures?

They categorize data without allowing for rank

They provide absolute zero for measurement

They rank order data while allowing for measurable distances

Interval level measures are characterized by the ability to rank order data while also allowing for measurable distances between the data points. This means that not only can you determine which values are greater or lesser, as with ordinal measures, but you can also quantify the difference between them. For example, in temperature measurements in Celsius or Fahrenheit, the difference between 10 degrees and 20 degrees is the same as that between 30 degrees and 40 degrees.

This level of measurement is particularly useful in various fields such as health education because it enables practitioners to perform more sophisticated statistical analyses, including calculating means and standard deviations. While some measures may categorize data or employ non-numeric categories, interval measures specifically combine ranking with quantifiable differences, making them distinct in their capacity for detailed analysis.

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They include only non-numeric categories

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