PSYC 3250 Lecture 7: PM 7
Document Summary
Come up with deinition of what trait is and what it isn"t. What behaviours are/are not characteristic of the trait. Content of the item is clearly related to the deinition. Use item analysis to determine which items to keep: i like this because . Example: personality based research form: formulation of a theoretically based deinition of the traits to be assessed, based on murray"s framework, scales. Etc: 100 items written for each scale, reviewed, provisional scales for smaller items, anything with extreme endorsement frequencies were eliminated. Content of the items relates to what is known about the construct being measured you can tell what is being measured, so you can cheat. Test taker must have requisite insight and must respond honestly. Highly trained professional not necessary to administer. Empirically keyed measures one thing really well and not other things at all.