This document describes a study that used purposive sampling to select 36 participants who were divided into two groups of 18 each. The study measured two variables, p and r, before and after an intervention for each group. Statistical analysis using dependent t-tests found no significant differences between the groups for either variable at the 0.05 level.

1. 6
2553
1
(2)
(3)
(4)
6 2
53
6
36 (Purposive Sampling)

2. (1)
0
2 0 (2)
4 30
p 0.40-0.65 r
0.50-0.80
0.9553 (3)
5
20
0.9689 (4)
t-test dependent) E 1/ E 2
1
.05 (2)
.05 (3)
79.65/78.19
75/75 (4)