why is it problematic to change a hypothesis why is it bad to change a hypothesis why would you change a hypothesis and use half of the data to test it? why change a hypothesis based on observed data why is it bad to change a hypothesis to fit observed data why it's hard to change a hypothesis why is it a problem if you need to change the hypothesis how to change your hypothesis to fit observed data why is it bad to test the hypothesis of research when can a hypothesis be changed why is it bad to use observed data before test why does it make a study to change a hypothesis? why is it difficult to modify a hypothesis why should an hypothesis be changed why does it need to be changed to fit data why is it bad to change a hypothesis before data collection can you change your hypothesis to fit observed data why changing a hypothesis is bad why do scientists change the hypothesis why does changing a hypothesis become difficult