In the early 1970s, Amedeo Giorgi applied phenomenological theory to his development of the Descriptive Phenomenological Method in Psychology in order to overcome certain problems he perceived, from his work in psychophysics, with approaching subjective phenomena from the traditional hypothetical-deductive framework of the natural sciences. Giorgi hoped to use what he had learned from his natural science background to develop a rigorous qualitative research method. Giorgi has thus described his overall project as such: "psychology is nothing like natural sciences... because its [dealing with human experiences and human phenomena. I want to be sure that our criteria is [sic this: that every natural scientist will have to respect our method. I'm not just trying to satisfy clinicians, or therapists, or humanists, I'm trying to satisfy the most severe criterion—natural scientists... because I anticipate that some day, when qualitative research develops and gets strong, the natural science people are going to criticize it. And I want to be able to stand up and say, 'Go ahead, criticize it—but you won't find any flaws here'."