McKinzey, R. K., & Raven, J. C. (4/25/05). Raven norms for the lower range of IQ. WebPsychEmpiricist Retrieved 4/25, 2005, from http://wpe.info/papers_table.html

Norms for the Raven Standard Progressive Matrices that go lower than the published manual’s 3rd percentile are presented.

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