Week 3: Validity & Reliability

Reliability and validity are concepts used to evaluate the quality of research. They indicate how well a method, technique or test measures something. Reliability is about the consistency of a measure, and validity is about the accuracy of a measure. Reliability refers to how consistently a method measures something. If the same result can be consistently achieved by using the same methods under the same circumstances, the measurement is considered reliable. Validity refers to how accurately a method measures what it is intended to measure. If research has high validity, that means it produces results that correspond to real properties, characteristics, and variations in the physical or social world.

This section dicusses both the concepts, their types and the ways to ensure them during reasearch.

Download Files

reliability-n-validity.pptx (0.18 MB )

reliability-vs-validity.docx (0.03 MB )

reliability-n-validity.pdf (0.34 MB )