When Many Observations of the Same Children in a Classroom

question 59

Multiple Choice

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

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Definitions:

Anion

An anion is a negatively charged ion, meaning it has more electrons than protons, which is typically formed when an atom gains one or more electrons.

Acetic Acid Solution

A solution composed of acetic acid, often used in vinegar, with acidic properties resulting from the presence of acetic acid.

Buffer Solution

A solution that resists changes in pH upon the addition of small amounts of acid or base, typically made from a weak acid and its conjugate base.

Acid

A substance that can donate a hydrogen ion (H+) and usually has a sour taste.