Different stories have different ways to validate. Besides looking for what you predicted, also pay attention to other metrics or feedback. Also, make sure qualitative study is part of the procedure at the beginning, so that you have a solid ground to advocate for your users. Never forget to follow up after the validation — what you can improve? What are the new opportunities? Do you need more validation?
Measurement can be
But data, and the insights it provides, are no substitute for design intuition. Data can inform that intuition but ultimately it’s up to you to draw conclusions,