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.
What Causes Autism? Because autism runs in families, most researchers think that certain combinations of genes may predispose a child to autism. But there are risk factors that increase the chance of having a child with autism. Advanced age of the mother or the father increases the chance of an autistic child.