In science, does the scientist test the Null or Alternative Hypothesis and why is this the case?

In science, does the scientist test the Null or Alternative Hypothesis and why is this the case|||In a sense the scientist tests both, but I guess if I had to answer your question I would say that he tests the Alternative Hypothesis.





When a scientist sets up an experiment, he is testing to see if an effect is observable. The null hypothesis states that the effect is not observable, so what the scientist is trying to do is to reject the null hypothesis by demonstrating that the alternative hypothesis is most likely true.|||Often this testing of different hypothesis is use full but sometimes it gets too complicated. Often a use full technique that relates to your question is, trying to prove your own hypothesis wrong. It's often a much quicker easier path. If they cannot prove it wrong, then they can see their idea stands up and deserves more detailed study.