Professor Hardy has spent the last decade conducting a study of the effects of early childhood "wellness" programs on subsequent delinquency. Every year, researchers visit participating families and collect a variety of data. Over the course of ten years, many families have moved away and the research staff has been unable to locate them. What problem has Professor Hardy encountered?
a. cross-sectional distortion
b. cohort distortion
c. panel attrition
d. experimental mortality
c
Criminal Justice
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There is no place in the private sector for community correctional agency work
Indicate whether the statement is true or false
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The EPA estimates that there are about ______ deaths each year in the United States as a direct result of toxic particles emitted from manufacturing plants.
a. 30,000 b. 45,000 c. 60,000 d. 80,000
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A substance that is an immediate chemical intermediary used or likely to be used in the manufacture of a controlled substance.
a. Adulterant or dilutant b. Simulated controlled substance c. Marihuana d. Immediate precursor
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Reducing hospital security problems include recognition of the
a. criminals. b. risks. c. staff. d. drugs.
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