I have been using data to guide decisions for a long time, and I have made a ton of mistakes in analyzing that data that has led to bad results. There’s a reason people say “garbage in, garbage out,” but how do laypeople know when data analysis is useful and when it isn’t?
Most people never know. To compound the issue, we are all presented with more access to data, and more exposure to unsupported analysis of that data presented as truth.
Sourced through Scoop.it from: www.eremedia.com
By Jim D”Amico. There is neither space or time enough to cover every potential issue with data analysis, so what I will offer here is a brief list of common errors in order to help everyone up their game.