№ files_lp_4_process_1_31856
Methodological section of a federal statistical program describing the sampling frame, respondent selection, response rates, and web-based procedures used to collect annual probation and parole population data from supervising agencies across the United States.
Year: 2020–2025
Country: United States
Subject: Probation and parole statistics; criminal justice data collection
Document type: Methodological description of statistical data collection
Institution: Bureau of Justice Statistics
Data collection partner: Research Triangle Institute
Survey program: Annual Surveys of Probation and Parole (ASPP)
Target respondents: Federal, state, and local probation and parole supervising agencies
Population coverage: Probation and parole populations under community supervision in the United States
Number of agencies in frame: 912
Parole respondents: 54
Probation respondents: Approximately 858
Data collection mode: Web-based survey with follow-up email, phone, and paper forms
Response rates: Probation 79% (2020), 76% (2021); Parole 98% (2020), 96% (2021)
Data validation procedures: Population change checks, discrepancy review, follow-up verification
Survey instruments: CJ-8 and CJ-8M forms
Reporting period: Annual reporting with yearend population reference (January 1–December 31)
Price: 8 / 10 USD
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