At PayScale, we really love data. Throughout 2015, we used data to tackle some of the most debated topics in the career world, as well as to shed some light on common misconceptions about data. PayScale's reports cover everything from the gender pay gap to the cost and reward of higher education. And sometimes, we analyze qualitative data, like how workers feel about their jobs. For example, which jobs are the most meaningful, and more importantly, which are the most meaningless? And, do women really only make 78 cents for every dollar a man makes?