New Digital Signage ROI Article published at WireSpring

The next part of my Digital Signage ROI study has been posted at the WireSpring weblog. Here's a snip:

Understand the Limits of Your Data Set

We've all heard the saying "numbers don't lie," and that's true. However, it's unfortunately also true that people do lie. Methodically. And perpetually. And in fact, even the best-intentioned people can get into trouble when analyzing data because their own hopes and beliefs will alter the way they interpret their numbers. So I'd like to point out a couple of common pitfalls and misunderstandings about data analysis that will hopefully spare you the embarrassment of being called a cheat and a liar the next time your customers ask you for the hard numbers.