Hypothesis 1: Mercury in thimerosal caused neurological damagein children, and is at least partly responsible for
the increase in autism diagnoses.
Hypothesis 2: Te rate of autism incidence is not increasing,only the rate of autism diagnoses, as greater awareness
of the syndrome and increased screening of children yields morepositive diagnoses of autism.
What are the observations that led to the generation of theabove hypotheses? Do both hypotheses make testable predictions? Howcould you test them?
