Intelligence Interval Cognitive Designation

40 - 54 Severely challenged (Less than 1% of test takers)

55 - 69 Challenged (2.3% of test takers)

70 - 84 Below average

85 - 114 Average (68% of test takers)

115 - 129 Above average

130 - 144 Gifted (2.3% of test takers)

145 - 159 Genius (Less than 1% of test takers)

160 - 175 Extraordinary genius

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