My First Shiny App: Analyzing PSSA Test Results Introduction Being a father of two elementary school students in Philadelphia – and just returning from India last year – I knew I had to learn about the PSSA’s. I knew that a lot of importance is placed on these standardized exams, but I had no idea what they tested and how they were used. While spending some time on the Pennsylvania Department of Education web site, I discovered test result data in Excel spreadsheets available for the last 5 years.
