Make stretch goals specific, not just big

A stretch goal must be specific and measurable to trigger the mechanisms that make it work.

Why it works

Goal specificity is the variable with the strongest effect size in Locke and Latham’s meta-analytic work: vague goals ("do your best") produce worse performance than specific ones even at the same difficulty level. Specificity works by creating an unambiguous gap between current and desired state, which directs attention and mobilises effort. An ambitious but vague goal provides aspiration without direction.

How to do it

1. Convert the ambitious aspiration into a specific, measurable target: not "grow significantly" but "reach X by date Y."
2. Define how progress will be measured and at what intervals.
3. Confirm the goal passes the "success is unambiguous" test: on the deadline, both you and an observer would agree whether it was achieved.

Evidence

Locke and Latham’s meta-analyses across hundreds of studies found that specific, difficult goals produced higher performance than "do your best" instructions, with specificity as a consistent independent predictor of outcome. (rct)

Most studies used laboratory or short-horizon tasks; very long-horizon stretch goals may require milestone sub-goals to maintain the specificity benefit.

Sources

• Locke & Latham (2002), "Building a practically useful theory of goal setting", American Psychologist

Common mistake

Treating the ambitious label ("stretch") as doing the work that specificity should do — "become world class" inspires but provides no feedback signal.