Psychology 2080A/B Lecture Notes - Lecture 4: Interpersonal Attraction, Flowchart, Factor Analysis

• School: Western University
• Department: Psychology
• Course: Psychology 2080A/B
• Professor: Donald Saklofske

Document Summary

Types of test items: writing test items, can take many different forms, evaluating test items, a test is nothing more than a set of techniques that allow you to observe the things you are interested in. Selected response: dichotomous, test-take chooses between set answers, 2 alternative for each item (ex. Simplicity: ease of administration, quick scoring, no "neutral" option, disadvantages, guessing, 50% chance of guessing correctly. Low reliability: multiple choice, polytomous, test-taker chooses between set answers, more than 2 alternative, advantages. Includes distractors: incorrect choices: ease of scoring -requires little skill, can be done objectively (ex. Factor analysis: assesses how many psychological dimensions (or underlying themes) are needed to explain performance of a large group of people on a test with many items: category. Similar to likert but with more choices: reliability depends on, good instructions, # of categories (<10)