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. Author manuscript; available in PMC: 2010 Jan 8.
Published in final edited form as: J Int Neuropsychol Soc. 2009 Jul;15(4):558–569. doi: 10.1017/S1355617709090857

Figure 1.

Figure 1

Four-factor Model B of the construct validity model for Sample 1 and Sample 2. Double-headed arrows connecting the latent variables (represented by circles) represent correlations among the constructs. The observed variables are represented by rectangles. The single-headed arrows from the latent ability constructs to the observed variables represent the loading of each task on the latent variable. The latent variables labeled “e” represent the unique and error variance associated with each observed variable.