The computation of the weighted average number of shares requires restatement of the shares. outstanding before the stock dividend or split. The additional shares outstanding as a result of a stock. dividend or split are assumed to have been outstanding since the beginning of the year.
While the causes of autism are complex, it is abundantly clear that it is not caused by bad parenting. Dr. Leo Kanner, the psychiatrist who first described autism as a unique condition in 1943, believed that it was caused by cold, unloving mothers.
However, there is increasing suspicion among researchers that autism does not have a single cause, but is instead a complex disorder with a set of core aspects that have distinct causes. Different underlying brain dysfunctions have been hypothesized to result in the common symptoms of autism, just as completely different brain problems result in intellectual disability.