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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Dev Sci. 2015 Nov 5;19(6):1067–1074. doi: 10.1111/desc.12352

Figure 2.

Figure 2

Models expressing relations between processing speed, WM and reasoning, using data from Times 1, 3, and 4. The top panel depicts a theoretically neutral full model (Model 0) in which all three constructs were linked to the other two within each time point and each construct predicted the other two at the next time point. The bottom panel depicts Model 1, in which change in reasoning reflects changes in speed and WM. VM = Visual Matching. A similar version of this model with constrained paths from Speed and WM at Time 3 to Reasoning at Time 4 showed significant coefficients (β = .20, p < .001).