R2 — Design every multi-step tool for the goal gradient: visible progress + low interaction cost + start-state non-empty when possible

Rule

Rule: Design every multi-step tool so the user can see how far they've come: visible step counter / progress bar; low per-step interaction cost; non-empty starting state when honestly possible (pre-fill common defaults, the way the Kivetz coffee card pre-filled 2 of 12 stamps).

Why: Kivetz et al. 2006 (Kivetz, Urminsky & Zheng (2006), Journal of Marketing Research — goal-gradient in consumer contexts: cafe loyalty stamps completed faster as customers neared reward; online raters persist longer near reward) — completion drive accelerates as users approach the end of a structured task. The pre-filled card was completed faster than the empty card with the same effective steps. NN/g engagement model (Nielsen Norman Group — engagement modelled as expected utility = perceived value minus interaction cost; abandonment can happen within seconds when perceived value drops) — the perceived-value side of the goal gradient is most visible when progress is shown.

How to apply: