models may have an advantage over the exponential models as the scatterplot does seem to indicate more rapid change during this time period. On the whole, however, similar developmental implications can be derived from both analytical strategies. Heritability tends to be high and accounts for the large majority of variance in infancy. Heritability declines substantially in early childhood and somewhat more slowly thereafter, resulting in roughly 40% of variance in personality attributable to genetic influences throughout adulthood. Environmentality displays the opposite pattern. Corrected for measurement error, environmentality shows a similar upward trajectory with a peak of accounting for over 40% of variance in personality.
