A psychologist wants to assess the reliability of a new test of Self Control, the higher the scores the higher the level of control. A random sample of college students is selected and given the test. In order to tap the reliability, the test is scored on the basis of comparing the results of the odd items versus the even items. The data follow: $$\begin{array} { c c c }
\text { Subject\# } & \text { Odd } & \text { Even } \
1 & 45 & 57 \
2 & 50 & 48 \
3 & 35 & 57 \
4 & 62 & 55 \
5 & 55 & 60 \
6 & 38 & 50 \
7 & 55 & 50 \
8 & 45 & 38 \
9 & 65 & 70 \
10 & 55 & 50
\end{array}$$
-What is the correlation when corrected by the Spearman-Brown?

Question

A psychologist wants to assess the reliability of a new test of Self Control, the higher the scores the higher the level of control. A random sample of college students is selected and given the test. In order to tap the reliability, the test is scored on the basis of comparing the results of the odd items versus the even items. The data follow: $$\begin{array} { c c c } 
\text { Subject\# } & \text { Odd } & \text { Even } \
1 & 45 & 57 \
2 & 50 & 48 \
3 & 35 & 57 \
4 & 62 & 55 \
5 & 55 & 60 \
6 & 38 & 50 \
7 & 55 & 50 \
8 & 45 & 38 \
9 & 65 & 70 \
10 & 55 & 50
\end{array}$$
-What is the correlation when corrected by the Spearman-Brown?

Quizplus · Accepted Answer

The Answer of A psychologist wants to assess the reliability of a new test of Self Control, the higher the scores the higher the level of control. A random sample of college students is selected and given the test. In order to tap the reliability, the test is scored on the basis of comparing the results of the odd items versus the even items. The data follow: $$\begin{array} { c c c } 
\text { Subject\# } & \text { Odd } & \text { Even } \
1 & 45 & 57 \
2 & 50 & 48 \
3 & 35 & 57 \
4 & 62 & 55 \
5 & 55 & 60 \
6 & 38 & 50 \
7 & 55 & 50 \
8 & 45 & 38 \
9 & 65 & 70 \
10 & 55 & 50
\end{array}$$
-What is the correlation when corrected by the Spearman-Brown?

A Psychologist Wants to Assess the Reliability of a New