Recently my readers and I took the quick and enjoyable Verbal (Gc) Test developed by Antjuan Finch. Finch provides the following norms for his test:

I polled my readers on how they did on this quiz

I converted these results into percentiles and then normalized Z scores, but because my readers are far smarter and more variable than the general U.S. population (mean 100, SD 15) the Z scores were multiplied by an SD of 19 and added to a mean of 129 (U.S. norms). Despite adding the Z scores to such a high mean, my IQ equivalents were still much lower Finch’s:

30 = 78 percentile (among PP readers) = IQ 144

29 = 48 percentile = IQ 128

28 = 34 percentile = IQ 121 (Very Bright)

27 = 25 percentile = IQ 116

26 = 20 percentile = IQ 113

25 = 16 percentile = IQ 110 (Bright)

24 = 14 percentile = IQ 109

23 = 13 percentile = IQ 107

22 = 9 percentile = IQ 104

21 = 6 percentile = IQ 100 (U.S. average)

19 to 20 = 5 percentile = IQ 97

18 = 3 percentile = IQ 94