Hubbard's original book on Dianetics attracted highly critical reviews from science and medical writers and organizations. The American Psychological Association passed a resolution in 1950 calling "attention to the fact that these claims are not supported by empirical evidence of the sort required for the establishment of scientific generalizations."[68][69] Subsequently, Dianetics has achieved no acceptance as a scientific theory, and scientists cite Dianetics as an example of a pseudoscience.[70][71]