A lot of polls, interviews, and surveys collect data at only one time. That means they can't separate the effect of age from that of generation.
The time-lag studies unique to iGen Consulting are collected across time, often going back 40 years or more. We draw from meta-analyses of psychological studies and large national databases that have sampled people of the same age for several decades.
In addition, one-time surveys can establish the current attitudes of the workforce and include people of all ages and levels of experience. Using both time-lag and one-time surveys, we can triangulate the results to draw conclusions about current and enduring generational differences.