methodological issues Flashcards
representativeness
a group that closely matches the characteristics of its population as a whole.
generalisability
the accuracy with which results or findings can be transferred to situations or people other than those originally studied
internal reliability
measures how well the test actually measures what it is supposed to measure
external reliability
implies how well the test can be generalized beyond what it is meant for
inter-rater reliability
a way to measure the level of agreement between multiple raters or judges.
test-retest reliability
the extent that a test produces similar results over time
split half reliability
A measure of consistency where a test is split in two and the scores for each half of the test is compared with one another.
internal validity
whether the effects observed in a study are due to the manipulation of the independent variable and not some other factor.
face validity
the extent to which a measurement method appears “on its face” to measure the construct of interest.
construct validity
A type of psychometric validity based on scales intended to measure one or more unobservable psychological factors
concurrent validity
when the criterion is measured at some point in the future (after the construct has been measured)
criterion validity
the extent to which people’s scores on a measure are correlated with other variables (known as criteria) that one would expect them to be correlated with.
external validity
o the extent to which the results of a study can be generalized to other settings (ecological validity), other people (population validity) and over time (historical validity).
population validity
the extent to which the sample can be generalised to similar and wider populations
ecological validity
a measure of how test performance predicts behaviours in real-world settings