The Size of Abrasive Particles

question 17

Multiple Choice

The size of abrasive particles:

• A) gradually gets smaller as they are used
• B) is efficient only if large
• C) loses shape over time
• D) does not change with use

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Definitions:

Test's Reliability

The consistency of a test in measuring what it is intended to measure across different occasions.

Reliability

Reliability refers to the consistency and dependability of a measurement, test, or instrument in yielding similar results under consistent conditions.

Test Items

Questions or tasks designed to measure knowledge, skills, abilities, or other attributes.

Nonmanipulated Variables

Variables in a study that are not altered or controlled by the researcher but observed for their effects on the outcome.