CLAA05H3 Study Guide - Midterm Guide: Behavioural Sciences, Content Validity, Discriminant
9 Feb 2015
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Document Summary
Systematic and detailed research on reliability and validity is often carried out on self- report measures on personality and individual differences. Psychologists often use self-report measures to study psychological attributes such as intelligence, self-esteem, extraversion, and depression: for example: neo-pi-r test- neo personality inventory- measuring ocean. Other measures are used in applied settings: clinical, counselling, personnel psychologists use measures to help them make better clinical diagnoses, career-choice decisions, and hiring decisions. Any measure you can make can be thought of in two components: true score- opposed to the score the individual obtained on the measure itself. An individual"s actual score on a variable being measured, as: measurement error- score value. Tests that show less variability in measures taken are considered more reliable (see page 95) Studying behaviour using unreliable measures is a waste of time, conclusions will be meaningless, and results won"t be able to be repeated.
