Failure to Apply the Flynn Correction in Death Penalty Litigation: Standard Practice of Today Maybe, but Certainly Malpractice of Tomorrow

The Flynn Effect is a well documented phenomenon demonstrating score increases on IQ measures over time that average about 0.3 points per year. Normative adjustments to scores derived from IQ measures normed more than a year or so prior to the time of testing an individual have become controversial in several settings but especially so in matters of death penalty litigation. Here we make the argument that if the Flynn Effect is real, then a Flynn Correction should be applied to obtained IQs in order to obtain the most accurate estimate of IQ possible. To fail to provide the most accurate estimate possible in matters that are truly life and death decisions seems wholly indefensible.