Implement the chosen solution with a concrete plan

Translate the chosen solution into specific actions, times, and checkpoints.

Why it works

Chosen solutions that remain abstract fail at the implementation stage for the same reason that goals without implementation intentions fail: no cue triggers the action and no checkpoint makes failure visible early enough to correct. A concrete plan creates the cue structure that bridges intention and behaviour.

How to do it

1. Write the action plan: who does what, by when, in which order.
2. Set a specific first action for today — the plan lives or dies on the first step.
3. Identify one possible obstacle and name a contingency: "if X happens, I will do Y."
4. Set a review point (48–72 hours) to check whether the plan is working.

Evidence

Implementation planning is one of the most robust intervention tools in behavioural science with large meta-analytic effect sizes (Gollwitzer & Sheeran, 2006). Its inclusion as a PST phase is clinically standard and theoretically well-grounded. (rct)

The implementation intentions literature is about the when-and-where plan; the broader PST implementation phase adds contingency planning and monitoring, which are embedded in clinical trials but not isolated separately.

Sources

• Gollwitzer & Sheeran (2006), implementation intentions and goal achievement, Advances in Experimental Social Psychology

Common mistake

Treating the decision as the solution and skipping the implementation plan — deciding is cognitive, doing is behavioural, and the gap between them is where depression creates friction.