01Interactive
Spend an upgrade budget, step time, and see which gains your chosen model retains.
Associated with Philip Brickman (provisional)
Donald T. Campbell.
Social scientist who coauthored the hedonic-relativism account behind the treadmill metaphor.
Associated with
02Interactive
Inspect a policy cutoff and discover why a nearby second policy matters.
Associated with Donald T. Campbell (provisional)
These relationships distinguish discussion, development, and popularization; they do not imply sole invention. Effect pages include supporting references where verified and label provisional associations.