These students with an IQ of 160 and above require extremely exceptional educational accommodations to meet their needs. 0.13% of the population is more than three standard deviations below the mean (IQ 160).

These exceptional students on both sides of the curve require an individualized curriculum to address their individual needs. 2.14% of the population is between the second and third standard deviation below the mean (IQ 55-70), and 2.14% is between the second and third standard deviation above the mean (IQ 130-145).Students on both sides of the curve require a modification to the curriculum from that provided to mainstream students to address their needs. 13.59% of the population is between the first and second standard deviation below the mean (IQ 70-85), and 13.59% is between the first and second standard deviation above the mean (IQ 115-130).This is the intellectual ability range addressed by the standard school age/grade-based curriculum. The majority of the population, 68.26%, falls within one standard deviation of the mean (IQ 85-115).Standard deviations, in most cases, are 15 points. Statistical information from Guiding the Gifted Child, 2002. This factsheet also includes the percentages in various population segments – gifted, highly gifted and profoundly gifted. This one-pager includes a bell curve diagram that helps explain the profoundly gifted population, those who score in the third standard deviation or 99.9 percentile, on IQ and achievement tests.

What is the average iq