Topic: What Is Reliability?Types of Reliability?

Reliability:

Reliability refers to the consistency of a measure. A test is considered reliable if we get the same result repeatedly. For example, if a test is designed to measure a trait (such as introversion), then each time the test is administered to a subject, the results should be approximately the same. Unfortunately, it is impossible to calculate reliability exactly, but there several different ways to estimate reliability.

Types of Reliability:

There are four general classes of reliability estimates, each of which estimates reliability in a different way. They are:

i.Inter-Rater or Inter-Observer Reliability   
ii.Test-Retest Reliability
iii.Parallel-Forms Reliability
iv.Internal Consistency Reliability


Edited by tanushree - 08Oct2007 at 12:09am