Methodological Issues Flashcards
Representativeness
The extent to which a sample is typical of the key features of the target population so is likely to produce findings that can be generalised
Generalisability
The extent to which findings from one sample or situation can be applied to another sample or situation
Reliability
The consistency of a measure
Internal Reliability
The consistory of results of a test across items within the test
External Reliability
The extent to which a test produces the same results in the same situation with the same people or the extent to which a test score varies from one time to another
Inter-Rater Reliability
The extent to which two researchers consistently rate, score or observe the same behaviour and the sets of ratings.
Test-Retest Reliability
A way to test reliability by using the same test twice
Split-Half Reliability
A way to test internal reliability by comparing two halves of a test
Validity
How accurate a piece of research is at at measuring what it aims to measure
Internal Validity
The extent to which the procedures within a study achieve the intended manipulations and measures. High internal validity means researchers can be sure that changes in the dependent variable are caused by the independent variable.
Face Validity
The extent to which a measure has ‘face value’ and appears to test what it claims to.
Construct Validity
The extent to which the phenomenon being measured actually exists
Concurrent Validity
The extent to which different measures of the same phenomenon produce similar results in the same circumstances, at the same time.
Criterion Validity
The extent to which one measure of a phenomenon predicts the value of another measure of the same phenomenon.
Population Validity
The extent to which the findings from one sample can be generalised to the whole of the target population