chapter  10
Targets of Developmental Analysis
Pages 8

The two hypothetical examples depicted in Figure 10-1 deal with one behavior observed in the same ten persons at three age levels (birth, childhood, adulthood) and therefore involve change within each of the ten individuals but also interindividual differences among the ten individuals. Note first the difference in developmental outcome, even though both examples started at birth with the same set of interindividual differences (same average, same standard deviation).