https://fanghuiz.github.io/ps0700/tags/measurement/ Recent content in Measurement on Political Science Research Methods Hugo -- gohugo.io en-us &copy; Fanghui Zhao 2019 <i class="fas fa-tree" style="color: #40a990;"></i> Sat, 19 Jan 2019 00:00:00 -0500 https://fanghuiz.github.io/ps0700/post/2019-01-19-example-measurement-stata/ Sat, 19 Jan 2019 00:00:00 -0500 https://fanghuiz.github.io/ps0700/post/2019-01-19-example-measurement-stata/ Example: Racial Resentment Scale Racial resentment scale is commonly used to measure symbolic racism. The scale contains four items, for each question, respondents indicate whether they agree or disagree with the statement on a five-point scale. The question wording and the respective variable number as appeared in American National Election Studies (ANES) 2016 are given below: V162211: &lsquo;Irish, Italians, Jewish and many other minorities overcame prejudice and worked their way up. https://fanghuiz.github.io/ps0700/post/2019-01-18-measurement/ Fri, 18 Jan 2019 00:00:00 -0500 https://fanghuiz.github.io/ps0700/post/2019-01-18-measurement/ Table of Contents Types of measurement Errors How to differentiate between systematic vs random error? Do you have any examples of systematic errors in measurement? Which error (systematic vs random) is worse? Which one should we try to avoid more? About the True Score Theory $T = X + \epsilon$, how do we know how close our measured value $X$ is close to the true score $T$, if we cannot truly know $T$?