How did research methods used in the newer school of thought  reflect a change in thinking and practice from the previous way of  thinking and practicing?

How did research methods used in the newer school of thought  reflect a change in thinking and practice from the previous way of  thinking and practicing?

Choose two schools of thought  (physiology, experimental psychology, voluntarism, structuralism,  functionalism, or Gestalt psychology) that were adjacent in time.

Discuss how and why a change from one to the other came about. How  did the principles and values of psychologists change because of the  transition? Did the subject matter being studied change in this  transition? How did research methods used in the newer school of thought  reflect a change in thinking and practice from the previous way of  thinking and practicing? Support your ideas with specific examples from  the text or other relevant sources, and be sure to cite your sources.

Choose a school of thought you have not already written about in  another post. So that we can explore all of these schools of thought,  try to choose two that have not already been addressed, if possible.