PSYC 2360 Lecture Notes - Lecture 5: Observational Error, Construct Validity, Predictive Validity
19 Jan 2017
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To have faith in a measure (does this accurately measure the conceptual. Test-retest reliability extent to which scores on the same measure, Reactivity when the same or similar measures are given influenced by the measure having been taken the first time to. Number of items has an influence on the size of the co-efficient. Interrater reliability - extent to which the ratings of one or more observers correlate with each other - inter-observer agreement. Construct validity the extent that a variable in fact measures the construct: inter-observer agreement - the degree to which different judges (raters) independently agree on an observation - judges need to be trained and independent. Validity the extent to which measures indicate what they are intended to: are you measuring what you claim to be measuring? (cid:499) it is supposed to measure the match between the conceptual definition and.
