When a selection method is free from random error we say it is:
A)reliable.
B)valid.
C)legal.
D)practical.
E)inexpensivE.

Question

Quizplus · Accepted Answer

Reliability refers to the consistency or stability of measurement. A selection method that is free from random error is consistent and therefore can be considered reliable. Validity, on the other hand, refers to the accuracy of measurement and whether it is measuring what it is intended to measure. Legal, practical, and inexpensive do not necessarily relate to the quality of measurement.

When a Selection Method Is Free from Random Error We