A forensic psychologist is attempting to assess the validity of a new test of police aptitude. The test is given to a random sample of first-day trainees during their orientation session at the police academy. At the end of the 2 month training program each subject is evaluated by the academy's director and rank-ordered on the basis of overall proficiency. The data follow. $$\begin{array} { c l c }
\text { Subj\# } & \text { Test Score } & \text { Ranking } \
1 & 55 & 8 \
2 & 60 & 3 \
3 & 45 & 6 \
4 & 75 & 2 \
5 & 43 & 5 \
6 & 34 & 10 \
7 & 48 & 7 \
8 & 62 & 1 \
9 & 50 & 4 \
10 & 46 & 9
\end{array}$$
-Find the Spearman correlation.

Question

A forensic psychologist is attempting to assess the validity of a new test of police aptitude. The test is given to a random sample of first-day trainees during their orientation session at the police academy. At the end of the 2 month training program each subject is evaluated by the academy's director and rank-ordered on the basis of overall proficiency. The data follow. $$\begin{array} { c l c } 
\text { Subj\# } & \text { Test Score } & \text { Ranking } \
1 & 55 & 8 \
2 & 60 & 3 \
3 & 45 & 6 \
4 & 75 & 2 \
5 & 43 & 5 \
6 & 34 & 10 \
7 & 48 & 7 \
8 & 62 & 1 \
9 & 50 & 4 \
10 & 46 & 9
\end{array}$$
-Find the Spearman correlation.

Quizplus · Accepted Answer

The Answer of A forensic psychologist is attempting to assess the validity of a new test of police aptitude. The test is given to a random sample of first-day trainees during their orientation session at the police academy. At the end of the 2 month training program each subject is evaluated by the academy's director and rank-ordered on the basis of overall proficiency. The data follow. $$\begin{array} { c l c } 
\text { Subj\# } & \text { Test Score } & \text { Ranking } \
1 & 55 & 8 \
2 & 60 & 3 \
3 & 45 & 6 \
4 & 75 & 2 \
5 & 43 & 5 \
6 & 34 & 10 \
7 & 48 & 7 \
8 & 62 & 1 \
9 & 50 & 4 \
10 & 46 & 9
\end{array}$$
-Find the Spearman correlation.

A Forensic Psychologist Is Attempting to Assess the Validity of a New