<prompt> Average Mental IQ according to Wechslers Scale is7079808990109110119  <response>: Wechsler Adult Intelligence Scale WAIS : David Wechsler 1939, published the first intelligence test designed for an adult population; It was the first IQ test based on NormalGaussian distribution.It is currently in its fourth edition WAIS-IV. The original WAIS Form I was published in February 1955, as a revision of the Wechsler - Bellevue intelligence scale that had been released in 1939. Fourth edition WAIS-IV was released in 2008 by Pearson.The median full scale IQ is Centered at 100, with a standard deviation of 15. In a normal distribution, the IQ range of one SD above and below the mean i.e. 85 and 115 is where approximately 68 of all adult would fall. 