Related Terms. Atrophic Pancreas. Atrophic pancreas is the wasting away of the pancreas usually from chronic pancreatitis or CP. CP is further defined as an inflammatory disease that is advanced and described by permanent morphologic changes and gradual formation of excessive fibrous tissue replacement of the gland.
By this definition, approximately two-thirds of the population scores between IQ 85 and IQ 115, and about 5 percent of the population scores above 125. IQ scores have been shown to be associated with such factors as morbidity and mortality, parental social status, and, to a substantial degree, biological parental IQ.
A standard deviation in IQ points is 15, so 68.2% of the population will have scores between 85 and 115. This is labeled an average IQ, which is just a name for a group of people scoring around the average score. This name for a group helps make it easier to group test takers together. About 95.4% of the population will have an IQ score between 70 and 130, which is everyone within two standard deviations.