21 min listen
Item Response Theory: how smart ARE you?
ratings:
Length:
12 minutes
Released:
Feb 8, 2016
Format:
Podcast episode
Description
Psychometrics is all about measuring the psychological characteristics of people; for example, scholastic aptitude. How is this done? Tests, of course! But there's a chicken-and-egg problem here: you need to know both how hard a test is, and how smart the test-taker is, in order to get the results you want. How to solve this problem, one equation with two unknowns? Item response theory--the data science behind such tests and the GRE.
Relevant links:
https://en.wikipedia.org/wiki/Item_response_theory
Relevant links:
https://en.wikipedia.org/wiki/Item_response_theory
Released:
Feb 8, 2016
Format:
Podcast episode
Titles in the series (100)
Electoral Insights (Part 2): Following up on our last episode about how experi… by Linear Digressions