IQ and academic performance

What are antecedents?

Antecedents such as poor IQ and academic performance are subtle deviations in development that may become evident during childhood or adolescence. The presence of these deviations may foreshadow the later development of schizophrenia, however most children who exhibit these antecedents do not develop the disorder. Studies exploring antecedents are ideally based on representative, population-based samples that follow the group from birth through childhood and adolescence to adulthood. These studies can provide unique insights into the changes in developmental trajectories that may be associated with schizophrenia.

What is the evidence for IQ and academic performance?

High quality evidence suggests children who develop schizophrenia in adulthood generally have lower IQ scores on a range of cognitive measures compared to children who do not develop the disorder. Moderate quality evidence suggests children who develop schizophrenia in adulthood may also display lower overall academic performance, but not in mathematics.

March 2019

Last updated at: 2:28 am, 23rd March 2019
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