Reliability

Types of reliability

Researcher reliability - the extent to which a researcher acts entirely consistently when gathering data. Also referred to as experimenter reliability, inter-observer and inter-rater reliability. 

Internal reliability - refers to the consistency of the measures used in an investigation.

External reliability - refers to the consistency of a measure from one occasion to another.

Assessing researcher reliability

Intra-researcher reliability (researcher must perform consistently)

• the extent to which a researcher produces similar/different results when observing or scoring the same situations on more than one…