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. Author manuscript; available in PMC: 2010 Nov 1.
Published in final edited form as: Popul Stud (Camb). 2009 Nov;63(3):295–306. doi: 10.1080/00324720903165464

Figure 1.

Figure 1

Conceptual model for the determinants of cognitive functioning

Note. Adapted from Richards and Deary (2005). Boxes in bold depict central, measured components of this framework. Dashed boxes depict often unmeasured components of this framework.