Coaching Science.
Practice design, feedback and instruction, evaluated as evidence rather than tradition.
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Coaching is the largest uncontrolled variable in sport. The research that exists tends to focus on the parts that are measurable — practice design, feedback, communication load — and those parts already contradict a lot of tradition.
What this field actually measures
- Practice density
Share of session time an athlete spends in active, task-relevant work.
ReferenceTime-motion audits routinely find large fractions of youth sessions spent queueing or listening.
- Feedback load
Volume of instruction delivered per repetition.
ReferenceExcess concurrent feedback creates dependency and degrades retention.
- Attentional focus cue
Whether a cue points at the body (internal) or the effect (external).
ReferenceExternal focus cues outperform internal ones for performance and learning across a large body of studies.
Evidence & metrics
The published work behind the numbers above, and the public datasets you can open to check us. If a claim can’t be traced here, we don’t print it.
Citations
What is coaching effectiveness? A definition and conceptual framework
Côté & Gilbert — International Journal of Sports Science & Coaching · 2009
Defines coaching effectiveness in terms of athlete outcomes and context rather than win totals.
Feedback frequency and motor learning
Winstein & Schmidt — Journal of Experimental Psychology: LMC · 1990
Reduced feedback frequency hurt practice performance but improved retention.
Datasets
Coach behaviour observation literature
PubMed / SPORTDiscus-indexed journals · free abstracts
Systematic observation studies of coach instruction, feedback, and practice design.
Sports Coaching Review open archive
Taylor & Francis · mixed
Peer-reviewed coaching research including open-access articles.
Still open
- Which coaching behaviours predict development rather than short-term results?
- How should coach education be evaluated beyond certification hours?
- Can practice design quality be audited as routinely as physical load?
What we won’t say
We will not treat a win-loss record as a measurement of coaching quality. It is a measurement of roster, schedule, and coaching, undivided.
- VO-1Evidence before wit
- VO-2Punch at claims, never at people
- VO-3Say the uncertainty out loud
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