Subjectivity in Diagnosis Updated in September 2020 to include DSM V. There is no litmus paper test for autism or Aspergers. The label is applied on the basis of set criteria , generally the DSM IV or more recently, DSM V which are determined by subjective analysis . Sometimes that analysis is in the form of questionnaires, sometimes as day-long tests and sometimes it seems to be almost arbitrarily applied by practitioners. The symptoms of autism vary from one person to another both in presence/combination and in intensity and no two people are exactly alike. If anything, the label, particularly for Asperger's syndrome is similar to online " geek tests " and coincidentally, there is a high correlation between geeks and aspies. This isn't to say that autism and Asperger's are "imaginary conditions" but rather to say that unlike specific tested conditions where the label describes the symptoms, Here, the symptoms describe the label. An Example: De