PSY3041 Lecture Notes - Lecture 3: Psychophysiology, Extraversion And Introversion, Face Validity

• School: Monash University
• Department: Health Sciences - Psychology
• Course: PSY3041
• Professor: jake hoskin

Document Summary

Ta(cid:396)ts (cid:449)ith (cid:395)uestio(cid:374)s like (cid:862)the(cid:396)e ought to (cid:271)e an instrument designed to measure [some psychological construct] in [such and such] a way. Review literature regarding existing tests (see how others have approached this problem and the theories they identified) Item development generate an item pool with good content validity. Items should be relevant to target construct and representative of all potentially aspects of target construct. Write items using straight forward appropriate language for the reading level of the population. Aim between 5th to 7th grade reading levels. Avoid slang and colloquial expressions that may quickly become obsolete. Write items that they can respond to appropriately. Administer the test on a representative sample (sample size usually 300+) The test (cid:858)t(cid:396)(cid:455)out(cid:859) data is the(cid:374) used to narrow down the number of items. Take out items with highly skewed distribution (items that everyone answers the same way) Ha(cid:448)i(cid:374)g a set of ite(cid:373)s does(cid:374)(cid:859)t necessarily mean you have a scale.