Question

Police radar equipment is used to detect the speed of objects. In one trial, the radar equipment records a stationary tree as traveling at 6 mph, although in another trial it records the tree as traveling at 0 mph. Which of the following measurement problems exist in the radar equipment? Correct Answer(s) reliability construct validity accuracy

Answer 1

Answer:

reliability

accuracy

Explanation:

If a reading of a measurement is consistently the same then the measurement is reliable.

If a reading of measurement is close the actual value of the measurement then the reading is accurate.

Here, a stationary tree shows reading 6 mph once and 0 mph another instant. So, neither the reading of a measurement is consistent not the reading of measurement is close the actual value.

Hence, the radar has problems in its reliability and accuracy