Reliability Flashcards
What is reliability ?
refers to the consistency of a research study
What is internal reliability ?
This describes the internal consistency of a measure (i.e. consistency within itself), such as whether the different questions in a questionnaire are all measuring the same thing.
How do you assess internal reliability ?
Split half method
What is the split half method ?
data collected is split randomly in half and compared, to see if results taken from each part of the measure are similar.
What is external reliability ?
refers to the extent to which a measure varies from one use to another. (Consistency over time- different time, different place, different people, should all produce the same results)
How can you assess external reliability ?
Test retest
Inter rater reliability
What is test retest reliability ?
measures the stability of a test over time, would involve giving participants the same test on two separate occasions
What is inter rater reliability ?
when you have two or more “judges” who independently assess and score the same participant or subject