Psychology 2080A/B Chapter Notes - Chapter 6: Item Response Theory, Takers, Preference Test

• School: Western University
• Department: Psychology
• Course: Psychology 2080A/B
• Professor: Patrick Brown

Document Summary

Devllis provided simple guides for item writing: define clearly what you want to measure. Make items specific: generate item pool. Theoretically all items randomly chosen from universe of content. Avoid redundant items: avoid exceptionally long items. Confusing or misleading: void (cid:515)double-barrelled(cid:516) items that convey two or more ideas at the same time, consider mixing positively and negatively worded items. Sometimes there is (cid:515)acquiescence response set(cid:516)(cid:497) respondents tend to agree with most items include items that are worded in opposite direction. Dichotomous format offer two alternatives: true or false examination, popular as teacher can easily construct test from lines in textbook, advantages. Simplicity, ease of administration, quick scoring, absolute judgement: disadvantages. Encourage memorization leading to good marks but little learning. As (cid:515)truth(cid:516) comes in shades of grey, test takers can(cid:514)t appreciate the complexity: many personality test require t/f. Personality test constructors prefer this because it requires absolute.