A Researcher Was Interested in Studying the Possible Deterrent Effect

question 43

Essay

A researcher was interested in studying the possible deterrent effect of sentencing. A sample of 12 recidivists was compared with another sample of 12 who had stayed clean. Both groups had been convicted of distributing drugs and both groups had served time. For each subject the length of the previous sentence in months was found. $$\begin{array} { c c } \text { Non-Recidivists } & \text { Recidivists } \\36 & 60 \\48 & 72 \\54 & 59 \\32 & 35 \\66 & 56 \\45 & 55 \\37 & 42 \\46 & 57 \\35 & 60 \\42 & 64 \\28 & 97 \\24 & 28\end{array}$$
-Do the two groups differ significantly?

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Definitions:

Hormones

Chemical messengers produced by the endocrine glands that regulate various bodily functions, such as growth, metabolism, and mood.

Cerebral Cortex

The outer layer of the brain's cerebrum, involved in complex thought processes, perception, and motor function.

Fissures

Narrow openings or splits in structures, often referring to cracks in the earth's surface or grooves in biological organs.

Left-handed

The characteristic of using the left hand more skillfully and naturally for tasks such as writing and eating.