A test specialist is attempting to find the reliability of a test designed to assess drug dependence. Ten subjects were randomly selected from a group of individuals. all of whom on a waiting list for a treatment program for drug abuse. The subjects were all given the test and then a week later were retested. The scores were as follows: $$\begin{array} { c r c }
\text { Subject\# } & \text { Test } & \text { Retest } \
1 & 45 & 50 \
2 & 35 & 32 \
3 & 50 & 54 \
4 & 67 & 70 \
5 & 45 & 40 \
6 & 55 & 60 \
7 & 65 & 62 \
8 & 50 & 48 \
9 & 60 & 70 \
10 & 45 & 40
\end{array}$$ Find the test-retest reliability value.

Question

A test specialist is attempting to find the reliability of a test designed to assess drug dependence. Ten subjects were randomly selected from a group of individuals. all of whom on a waiting list for a treatment program for drug abuse. The subjects were all given the test and then a week later were retested. The scores were as follows: $$\begin{array} { c r c } 
\text { Subject\# } & \text { Test } & \text { Retest } \
1 & 45 & 50 \
2 & 35 & 32 \
3 & 50 & 54 \
4 & 67 & 70 \
5 & 45 & 40 \
6 & 55 & 60 \
7 & 65 & 62 \
8 & 50 & 48 \
9 & 60 & 70 \
10 & 45 & 40
\end{array}$$ Find the test-retest reliability value.

Quizplus · Accepted Answer

The Answer of A test specialist is attempting to find the reliability of a test designed to assess drug dependence. Ten subjects were randomly selected from a group of individuals. all of whom on a waiting list for a treatment program for drug abuse. The subjects were all given the test and then a week later were retested. The scores were as follows: $$\begin{array} { c r c } 
\text { Subject\# } & \text { Test } & \text { Retest } \
1 & 45 & 50 \
2 & 35 & 32 \
3 & 50 & 54 \
4 & 67 & 70 \
5 & 45 & 40 \
6 & 55 & 60 \
7 & 65 & 62 \
8 & 50 & 48 \
9 & 60 & 70 \
10 & 45 & 40
\end{array}$$ Find the test-retest reliability value.

A Test Specialist Is Attempting to Find the Reliability of a Test