The PitC study showed an 8 point IQ increase in the control group. You offered those three explanations and said that they explained why that wasn't particularly unusual, and my understanding of normed IQ tests is that they are expected to remain constant over short times.
normed IQ tests is that they are expected to remain constant over short times.
Over the general average population when tested once, yes. But the control group is neither general nor average nor the population nor tested once.
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