SPSS is popular because you don't need to know how to code to use it (though you can).
However, if your work requires rigorous statistical validation, regulatory compliance, and a workflow that is accessible to non-coders, SPSS remains unmatched. ibm spss
: A tool for evaluating agreement between two different measurement techniques. Usability & Extensibility IBM SPSS Statistics - Features SPSS is popular because you don't need to