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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Infant Child Dev. 2010 Jul 1;19(4):333–353. doi: 10.1002/icd.670

Figure 1.

Figure 1

Unconditional growth model. Black lines indicate individual growth trajectories using ordinary least squares (OLS; Singer & Willet, 2003). Grey line depicts average growth trajectory.