Secure Will — convert the best option into a specific commitment

Close the conversation with a specific, self-declared commitment to a concrete next action.

Why it works

Conversations that end without specific commitment produce good intentions that evaporate within 48 hours. The Will phase forces the transition from option to action: the person names specifically what they will do, when, and what obstacles they foresee. This creates an implementation intention, which research shows substantially increases follow-through compared to goal-only commitment.

How to do it

1. Ask: "What will you actually do, and by when?" — specificity is the active ingredient.
2. Invite the person to rate their commitment on a 1–10 scale: "How committed are you to this?" Below 8, explore the gap.
3. Ask: "What might get in the way, and how will you handle it?" — anticipating obstacles increases follow-through.
4. Close with a clean summary: "So you’re committing to [specific action] by [specific date]. Is that right?"

Evidence

Implementation intention research (Gollwitzer & Sheeran) is among the most replicated in behavioral science: when-where-how specificity in commitments dramatically increases follow-through compared to intention alone. (rct)

The implementation intention research supports the Will phase’s mechanism; the GROW model as a whole is a clinical framework that applies this and adjacent principles.

Sources

• Gollwitzer & Sheeran (2006), implementation intentions, Advances in Experimental Social Psychology (d ≈ 0.65)

Common mistake

Accepting vague commitments ("I’ll think about it" or "I’ll try to do X soon") — which carry no implementation intention and reliably produce no behavior change.