A Floridian with an IQ as high as 75 can be diagnosed as mentally disabled and be eligible for help getting a job. But on death row, the state says having an IQ higher than 70 categorically means an inmate is not mentally disabled and can be executed.
The Supreme Court barred states from executing mentally disabled inmates in 2002, but until now has left the determination of who is mentally disabled to the states.
In arguments today, 68-year-old Florida inmate Freddie Lee Hall is challenging the state’s use of a rigid IQ cutoff to determine mental disability.
Florida is among a few states that use a score of 70, as measured by IQ tests, as the threshold for concluding an inmate is not mentally disabled, even when other evidence indicates he is.
“Simply put, IQ tests are not a perfect measure of a person’s intellectual ability,” Hall’s lawyers told the court in written arguments.
In nine tests administered between 1968 and 2008, Hall scored as low as 60 and as high as 80, with his most recent scores between 69 and 74, according to the state.
A judge in an earlier phase of the case concluded Hall “had been mentally retarded his entire life.” Psychiatrists and other medical professionals who examined him said he is mentally disabled.
As far back as the 1950s, Hall was considered “mentally retarded” — then the commonly accepted term for mental disability — according to school records submitted to the Supreme Court.
He was sentenced to death for murdering Karol Hurst, a 21-year-old pregnant woman who was abducted leaving a Florida grocery store in 1978.
Hall also has been convicted of killing a sheriff’s deputy and has been imprisoned for the past 35 years. He earlier served a prison term for assault with intent to commit rape and was out on parole when he killed Hurst.
Hall’s guilt is not at issue before the high court.
Florida’s regulatory code says individuals with IQs as high as 75 can be diagnosed as mildly intellectually disabled, potentially allowing them to receive state aid. The code relies on the Diagnostic and Statistical Manual of Mental Disorders, the authoritative manual of the American Psychiatric Association, setting an IQ of 70, plus or minus 5, as the upper range of intellectual disability.
The range reflects something that is true of all standardized testing — results are generally reliable, but not 100 percent so, and they are reported along with a margin of error.
The outcome of Hall’s case is unlikely to affect the busiest death penalty state, Texas, which does not impose a rigid IQ test to assess mental disability. Hall’s lawyers, in fact, approvingly cite Texas’ broader approach to the issue.
Florida said there’s no national consensus about a strict IQ limit, and no reason for the court to impose one.
The two sides disagree about the precise number of states that employ rigid cutoffs. The state calls attention to Florida Supreme Court Justice Barbara Pariente’s opinion in 2012 that identified eight other states that have such a limit: Arkansas, Delaware, Idaho, Kentucky, North Carolina, Tennessee, Virginia and Washington.
Hall’s lawyers argued that only in five states — Florida, Alabama, Idaho, Kentucky and Virginia — have state courts held that inmates with IQs higher than 70 cannot be considered mentally disabled. Even in Idaho, the ruling appears to give judges some leeway, Hall’s lawyers said.
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