Group

Number of cases

Remarkable effect

Valid

Not valid

Total effective rate

control group

60

32 (53.33)

19 (31.67)

9 (15.00)

51 (85.00)

experimental Group

60

38 (63.33)

21 (35.00)

1 (1.67)

59 (98.33)

t

-

-

-

-

5.982

P

-

-

-

-

0.019