The Seattle Longitudinal Study is best described as a study that uses which of the following methods to study how adult cognition changes with age?
A) only cross-sectional methods
B) only longitudinal methods
C) neither cross-sectional nor longitudinal methods
D) both cross-sectional and longitudinal methods

Question

Quizplus · Accepted Answer

The Seattle Longitudinal Study is a longitudinal study that follows a group of individuals over a period of many years to study how adult cognition changes with age. However, the study also incorporates some elements of cross-sectional methods by including participants from different age groups at each wave of data collection. Therefore, the study uses both cross-sectional and longitudinal methods.

The Seattle Longitudinal Study Is Best Described as a Study