Home / Questions / An educator has constructed a test for mechanical aptitude He wants to determine how relia...

An educator has constructed a test for mechanical aptitude He wants to determine how reliable the test is over two administrations spaced by 1 month A study is conducted in which 10 students are

An educator has constructed a test for mechanical aptitude. He wants to determine how reliable the test is over two administrations spaced by 1 month.

A study is conducted in which 10 students are given two administrations of the test, with the second administration being 1 month after the first. The data are given in the following table.

Student

Administration 1

Administration 2

 

1

0

1

10

 

2

2

1

15

 

3

0

2

17

 

4

5

2

25

 

5

7

2

32

 

6

5

3

37

 

7

3

4

40

 

8

0

4

38

 

9

2

3

30

10

 

47

 

49

a. Construct a scatter plot of the paired scores.

b. Determine the value of r.

c. Would it be fair to say that this is a reliable test?

Explain using r2.

Aug 24 2020 Read more Less More

Answer (Solved)

question Subscribe To Get Solution

Recent Questions

Chat Now

Welcome to Live Chat

Welcome to MyCourseHelp Services, World's leading Academic solutions provider with Millions of Happy Students.

Please fill in the form