Learn how to measure the consistency of your methods and results with four types of reliability : test-retest, interrater, parallel forms and internal consistency. See examples of how to apply and improve each type of reliability in your research. The meaning of RELIABILITY is the quality or state of being reliable. Reliability analysis assesses a scale's consistency by examining results when measurements are repeated multiple times. Researchers typically desire high reliability to ensure the scale is trustworthy and produces credible outcomes. The four main techniques in reliability analysis methods include test-retest, parallel forms, split-half, and inter-rater reliability methods. If reliability analysis fails to demonstrate the scale's consistency, researchers may need to consider alternative ... Baffled by the concept of reliability and validity ? Reliability refers to the consistency of measurement. Validity refers to the accuracy...