A researcher calibrates an instrument by placing a five-pound weight on a scale to see if the scale gives a reading of 5.0 pounds.The researcher is testing the scale's
A) reliability.
B) validity.
C) accuracy.
D) correlation.

Question

Quizplus · Accepted Answer

The researcher is testing the accuracy of the scale, which means they are checking if the scale gives a measurement that is close to the true value of the weight (in this case, 5 pounds). Reliability refers to the consistency of measurements, validity refers to whether the scale is measuring what it is intended to measure, and correlation refers to the strength of association between two variables.

A Researcher Calibrates an Instrument by Placing a Five-Pound Weight