CCJS 300 Lecture Notes - Lecture 4: Voluntary Manslaughter, Motor Vehicle Theft, Multistage Sampling

• School: University of Maryland
• Department: Criminology and Criminal Justice
• Course: CCJS 300
• Professor: Alan Lehman

Document Summary

Arson, listed but not included in the index because there is grey area. Crime rate: cases per (some number) usually 100,000 population. Recorded statistics are only a portion of true crime rate. Most federal cases, victimless crimes, white collar crimes, not included. 1977, call for major redesign in terms of measurement. New system: uses 52 data elements (or variables) Enables use of statistical procedures, need a sampling frame. Systematic sampling (every nth item on a list) Purposive (judgmental) sampling (includes focus groups & mock juries) Sequential sampling (like purposive sampling, keep accumulating cases until you run out of time or at end of economic resources) Sample size, probability & the central limit theorem.