PSYB30H3 Chapter 4: Chapter 4.docx
Document Summary
Personality assessment - the measure of the individual characteristics of a person ; most commonly used are personality tests. Developers of a personality test must demonstrate that the test is valid and reliable, and specify the conditions, populations and cultures the test applies to. Must also provide theoretical background and research evidence confirming that the test is related to certain outcomes. Biggest difference between fake and real personality tests is that legitimate personality tests have reliability, validity and generalizability, backed by research evidence. Test reliability: generalizability across time, items and raters reliability is a prerequisite for validity. Reliability - an estimate of how consistent a test is: a good test gives consistent results over time, items or raters. We want to know that a test gives consistent results in all of these situations: across time, across items and across raters.
