Table 2.

Experimental procedure by group and time period.

	Pre-test	Treatment	Post-test	Retention test
Group	Day 1	Day 1 Day 2 Day 3	Day 3	Day 5
Action observation training group (n = 10)	SDA-M + Putting task	Observation training 60 times per day	SDA-M + Putting task	SDA-M + Putting task
Motor imagery training group (n = 10)	SDA-M + Putting task	Imagery training 60 times per day	SDA-M + Putting task	SDA-M + Putting task
Physical practice group (n = 10)	SDA-M + Putting task	Physical practice 60 times per day	SDA-M + Putting task	SDA-M + Putting task
No practice group (n = 10)	SDA-M + Putting task	No practice	SDA-M + Putting task	SDA-M + Putting task

Note: SDA-M (structural dimensional analysis of mental representation): the psychometric method for measuring the mental representation structure of golf putting; putting task: 15 putting trials after two warm-up trials.