Supplemental Material for
Stability and Change in Intelligence From Age 12 to Age 52: Results From the Luxembourg MAGRIP Study
Daniela Schalke, Martin Brunner, Christian Geiser, Franzis Preckel, Ulrich Keller, Marion Spengler, and
Romain Martin
Developmental Psychology,
Vol.
49,
No.
8,
pp.
1529–1543
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