The Journal of Korean Physical Therapy

Table. 1. Table 1

Detailed data values for calculating the number of samples

Test family	T test
Type of power analysis	A priori: compute required sample size - given α, power, and effect size
Effect size d	0.50
α err prob	0.05
Power (1-B err prob)	0.90
Allocation ratio N2/N1	1
Total sample size	36