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Infant productive vocabulary at 1;5 plotted as a function of care-schedule for CDI, noun-types and noun-tokens. The y-axis uses a natural log scale. Circles represent individual infants’ data, jittered slightly to show overlapping data-points. Triangles represent group means and 95% bootstrapped non-parametric confidence intervals. Non-overlapping confidence intervals correspond to significant condition differences (see Table 5).
