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

question 15

Short Answer

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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Definitions:

Articular Surface

The surface of a bone that comes into contact with another bone to form a joint, facilitating smooth movement between them.

Facet

A small, smooth, flat surface on a bone, often where two bones articulate.

Bone Marking

Features on the surface of bones, such as ridges and depressions, that serve as sites for attachment of muscles, tendons, and ligaments.

Rough Projection

Refers to a bony projection with a rough surface, often serving as a site for muscle attachment.