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

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. $$\begin{array} { c l c } \text { Subj\# } & \text { Test Score } & \text { Ranking } \\1 & 55 & 8 \\2 & 60 & 3 \\3 & 45 & 6 \\4 & 75 & 2 \\5 & 43 & 5 \\6 & 34 & 10 \\7 & 48 & 7 \\8 & 62 & 1 \\9 & 50 & 4 \\10 & 46 & 9\end{array}$$
-17-75, Is it significant? .

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