1PSY 352: Personality PsychologyLecture Outline #2: Personality Assessment, Measurement, and Research DesignPart 1: Four Types of Personality Data20-statement test (Kuhn& McPartland, 1954)The I am experimentPart 1: Four Types of Personality Data1.Self-report data (S-data): Ask person about themselves (e.g. 20 statement test)Open-ended questions T/F questions, adjective checklist Likert scale: range of number represent answer how creative you are 1-10oStrength of S-data Access to info that other don’t have (e.g. anxiety, self-esteem goals)Easy to measure oWeaknesses of S-data:Do people have accurate self-knowledge? Will people be honest?oSocial desirability:Tendency to answer in attractive/likable ways Lying, distorted self-perception Getting around social desirability:if you think SD is a bias to be filtered from dataoCrowne-Marlowe scale: statistically control for it oForced-choice questionnaires: no SD involved, not as open oOr maybe its not something to be filtered at all, Component of happiness, mental health 2.Observer-report data (O-data): Ask someone else about the person of interest Strengths of O-data: oAccess to info not available to person (e.g. reputation, social perception) oSometimes with extreme short exposure!