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Columns from left to right: the name of the tested fixed effect; the standardised estimated slope for the effect; and the χ2 statistic representing the difference in deviance between a model which includes information gain as an effect and a model which does not. Significance is coded as with a star:’*’. The performance of the model is displayed as Marginal (variance explained by fixed effects only) and Conditional (variance explained by fixed and random effects) R2 values.