A Business Analyst Associate is a person whose job is very data-oriented. Much like a computer, they must follow many streams of thought and data at once, analyze, interpret, and compare it, and keep in mind various factors.
Some positions also include responsibilities like helping implement projects like data feeds and mapping, assuring data quality, writing reports, and so on.
It's enough to have an undergraduate or a graduate's degree in Computer Science, Finance, or something similar for this position but some employers might look for candidates who have a Master of Science in Information Management (MSIM), or a Master of Science in Business Analytics (MS-BA) or something akin to those degrees. Good grasp of IT and of data analysis are key for this position.