The Devil’s in the Error Message

The Devil’s in the Error Message

Error messages can be the angels or the devils on our shoulders: they can catch our mistakes and help us on our merry way, or plunge us deeper into confusion and frustration. Kathi Kaiser describes how an error message that cried wolf put a damper on an otherwise sunny travel experience.

My User Experience of Driving an Electric Car Summed Up in Two Words: Range Anxiety

My User Experience of Driving an Electric Car Summed Up in Two Words: Range Anxiety

My commute is seven miles round trip across Evanston and back again, and I decided that my subcompact getting 30 mpg wasn’t cutting it anymore. Why not get an electric car and avoid gas altogether? So I bought a Nissan Leaf, and I love it! Of course, I can’t help but analyze the user experience of my new car… and here’s what I’ve noticed:

Even though the range of ~90 miles is likely more than I’ll drive in an average week, I still suffer from range anxiety....

Our Favorite Experiences of 2014

Our Favorite Experiences of 2014

2014 was an exciting year for us here at Centralis! We take a look back at some of our big achievements of the past year.

Is Eight Enough? Choosing the Right Sample Size

Is Eight Enough? Choosing the Right Sample Size

How many participants do you need for a usability study? This is one of the most common questions clients ask when approaching us about a new research project. Here are a few questions to consider when choosing your sample size: