In which of the following situations would a researcher use the t test for dependent means?

a. Comparing stress levels before and after an exam
b. Comparing first graders and college students
c. Comparing owners of hand guns and shot guns
d. Comparing drug users and non-drug users


a. Comparing stress levels before and after an exam

Criminal Justice

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A fire which is intentionally set as a result of some real or imagined dispute is grouped into which category of fires?

a. profit motivated b. hate motivated c. obsessional motivated d. irresistible impulse motivated

Criminal Justice

Evidence with individual characteristics can lead to a determination of common origin (single source).Which type of evidence CANNOT yield such results?

a. Random striations on tools b. Fingerprints c. Wear patterns on tires d. Single-layer paints

Criminal Justice

The taking of a victim's property by force and violence or by the threat of violence is defined as _______

Fill in the blank(s) with the appropriate word(s).

Criminal Justice

Category A, B, and C agents are what part of CBRNE?

A. Nuclear B. Chemical C. Energy D. Biological

Criminal Justice