The residuals of the model (i.e., respDev ∼ 1 + adj + σ p + µ p + σ p : µ p + (1|turker)) showed that the data was heteroskedastic.
in order to build technology that has the ability to answer questions relevant to national and global security, e.g., on food insecurity in certain parts of the world, one has to implement machine reading technology that extracts causal mechanisms from texts.