Additional file 1.
Scree-plot for the identification of CEBQ factors in Chilean children 6 - 12 years-old. Eight factors were identified with eigenvalue > 1.0 using factor analysis with the principal component extraction method. The scree plot shows that either the eight-factor or the seven-factor solutions are both acceptable given the slope of the chart.
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Santos et al. Nutrition Journal 2011 10:108 doi:10.1186/1475-2891-10-108