Fig. 2
From: Assessing adolescents’ perceived proficiency in critically evaluating nutrition information
The double-headed arrows represent the uniqueness correlations between CNL1 & CNL4, and CNL2 & CNL5. The highest factor loading (CNL2) is fixed to 1.0 (completely standardized solution). The rectangular boxes represent the observed variables (CNL1-CNL5), while the oval shape represents the unobserved latent factor, CNL-E. The single arrows pointing towards the observed measured variables indicate the uniqueness, a composite of specific variance and measurement error specific to each of the five variables