Morris was greatly impressed with the logical positivist (logical empiricist) movement. This perspective stands in contrast to the positivist reductionist orientation of the scientific psychology. The core of the difference lies in an epistemological difference between positivist and postpositivist theorists. He found new interpretations in positivist and evolutionist theories. Waldron is a liberal and a normative legal positivist. IR theories are also roughly divided into one of two epistemological camps&colon; "positivist" and "post-positivist". Maslow's early experience with behaviorism would leave him with a strong positivist mindset. The British logical positivist A. J. Ayer was strongly critical of Heidegger's philosophy. He advanced falsification in lieu of the logical positivist idea of verificationism. Heisenberg and Bohr always described quantum mechanics in logical positivist terms. In contrast, archaeology and biological anthropology remained largely positivist. Social network analysis is an example of a new paradigm in the positivist tradition. Whorf's ideas have also been interpreted as a radical critique of positivist science. This definition has both positivist and naturalist elements. This is perpetuated by how funding authorities tend to prioritize quantitative research with positivist frameworks.