Abstract and Keywords
The meaningfulness of personality measures depends upon a number of factors: validity studies, score scales which are understood by test users, knowledge that the measure has been studied with members of a population to which an individual test taker or a group of test takers belongs, and so on. Fundamental to such considerations is that the measure has been administered under the same or comparable circumstances as it was when normed, validated, checked for appropriate types of reliability, and otherwise researched. This article examines issues specific to testing individuals, focusing on test standardization and test administration. It stresses the need to perform generalizability studies to show that the meaningfulness and validity of tests generalizes across administrative changes, language variations, and cultural differences for varying groups of individuals. Truly, psychological testing needs to stay rooted into its very basis: the science of individual differences. The article also considers the testing of minorities and disabled people.
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