A researcher notes a reliability score of 0.75 between two observers in a clinical drug trial evaluating whether the drug decreases anxiety.This score means that
A) there is 25% random error.
B) there is 75% random error.
C) this is an acceptable measure of reliability.
D) this measurement tool is not reliable.

Question

Quizplus · Accepted Answer

The interrater reliability value represents reliability.A 0.75 measure indicates 75% reliability and 25% random error.Generally,interrater reliability is best at 0.90,and any value less than 0.80 should generate serious concern about the reliability of the data or the data gatherer.This is a measure of interrater reliability and may not necessarily reflect on the reliability of the tool.

A Researcher Notes a Reliability Score of 0