Test scores Group

N

Mean

SD

t

df

significance

Posttest TKA

Learner Control

25

28.04

1.77

10.70

48

0.00

Program Control

25

21.96

2.23

Posttest OCS

Learner Control

25

23.16

0.80

8.56

48

0.00

Program Control

25

18.88

2.37