Last September a paper in Molecular Psychiatry purported to have found a “Genetic Test To Predict Risk for Autism”. In a letter to the journal, however, researchers from the Center for Autism Research and Treatment and Program in Neurobehavioral Genetics at UCLA find that a look at the data set reveals that the genetic variance reflects a difference in geographic location, and ancestry, rather than in autism.
Of further interest:
“Genetic Test for Autism” Criticized (Discover Magazine)