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Table 4 Mean, minimum, and maximum of performance IQ scores in different socioeconomic levels

From: Behavior rating and intelligence testing in primary school children exposed to multiple adverse experiences

Socioeconomic levelPerformance IQ value
Mean ± SDMin.–max.
Above average93.6 ± 12.68178–111
Average94.33 ± 11.9968–106
Below average83.08 ± 11.16862–104
Low84.58 ± 15.39765–121
Very low80.25 ± 14.20165–104
P value0.063