Mixing up qualitative and quantitative data

It upsets me when papers make the effort to do proper usability studies and then misuse the results because they get confused by qualitative and quantitative data. As nicely explained in my HCI notes, quantitative data has a "structure of integers or real numbers, e.g.number of errors (discrete) or time to complete task (continuous)", whilst qualitative data is essentially everything … Continue reading Mixing up qualitative and quantitative data

Top 10 usability crimes and text visualization

I found a really good article called the 10 usability crimes you really shouldn't commit and I have updated the website according to adhere to some of the principles - mainly making the website logo now a link to the home page and indicating the active form field for comments below. I didn't actually realise you could … Continue reading Top 10 usability crimes and text visualization