PSYCH 3100 Study Guide - Midterm Guide: Observational Error, Girl Scout Cookies, Likert Scale
Document Summary
What is measurement error: the difference between a measured value and its true value, measurement error distorts the scores so that the observations do not directly reflect reality. What are the two types of measurement error: systematic error, random error. How can you account for or control these common causes of measurement error: have more individuals in the sample. What is the difference between an objective measurement and a subjective measurement: subjective, objective, someone"s opinion, unbiased facts. Be able to provide causes of systematic measurement error: unaccounted for third variables. Be able to provide examples of instrumentation bias. Inapplicable questions: questions that not everyone can answer, overdemanding recall, ambiguity of wording, having participants recall something that happened a long time ago, different meanings, indifferent places and/or cultures, doubled-barreled questions, two questions in the same item, example. Do you like girl scout cookies and boy scout popcorn: leading questions, questions that lead to a particular answer.
