In Schaie's (2008) sequential research, the finding that, within a given cohort, some people show longitudinal decline in certain abilities, some people show stability, and yet others show increases in these same abilities speaks to the concept of
A) acquisition of symbolic knowledge.
B) plasticity.
C) interindividual variability.
D) modification of underlying fluid intelligence abilities.

Question

Quizplus · Accepted Answer

The finding that individuals within a given cohort show different patterns of change in cognitive abilities speaks to the concept of interindividual variability, meaning that different individuals vary in their cognitive functioning and changes over time. This variability is important as it highlights the need for personalized interventions and tailored approaches to support cognitive functioning in older adults.

In Schaie's (2008) Sequential Research, the Finding That, Within a Given