A researcher has developed a new test of self-esteem. To evaluate the reliability of the test, the researcher obtains a sample of n = 17 participants. Each individual takes the test on a Monday morning, then returns 2 weeks later to take the test again. The two scores for each individual are reported below. Use Person's r to measure the degree of consistency between the first and second measures for this sample. Report and interpret the obtained coefficient, and explain what it means in this context.
|
First Test
|
Second Test
|
|
13
|
15
|
|
5
|
4
|
|
12
|
13
|
|
11
|
11
|
|
9
|
10
|
|
14
|
13
|
|
8
|
8
|
|
8
|
6
|
8
|
10
|
5
|
6
|
7
|
8
|
13
|
13
|
15
|
15
|
8
|
7
|
14
|
12
|
6
|
7
|
14
|
15
|