Both Pearson correlation (r = 0.04) and Spearman's rank correlation (ρ = 0.03) are close to zero and indicate no correlation (Figure 2).
while concreteness has been shown to work well as a feature to distinguish between literal and non-literal language in general (Beigman Klebanov et al., 2014;Tsvetkov et al., 2014), it does not seem useful for discerning between novel and conventionalized metaphoric usage in particular.