All of WSIPP's research is published on our website. The Publications page includes every report we've released—from our founding in 1983 to the present. Each report entry includes the title, publication date, abstract, any available supplemental materials, and a downloadable PDF.
WSIPP reports are not updated after publication, and any report older than two years is designated with an “Archived” label.
To explore our benefit-cost and meta-analytic findings, please visit the Benefit-Cost section of the website.
Use the search fields below to find specific publications that match certain criteria. If you want to find other information on our website that is not publications, you can use the search field in the navigation bar at the top, or click here to search the entire website.
Search Results
Found 591 results
New Risk Instrument for Offenders Improves Classification Decisions (Archived)
The 1999 Offender Accountability Act (OAA) affects how the Department of Corrections (DOC) supervises convicted felony offenders in the community. The Institute was directed by the legislature to evaluate the OAA. The OAA requires DOC to supervise offenders according to their risk for future offending, which is estimated using instruments that classify offenders into groups with similar characteristics.
The Institute developed a "static risk" instrument, which DOC began using as part of its Risk Level Classification (RLC) system in 2008. This new system replaced DOC's previous Risk Management Identification (RMI) system, which had been in use since the OAA was implemented. Comparing recidivism rates of offenders classified under the new RLC and the old RMI systems, this report finds the new system to have better predictive accuracy than the prior system.
Increased Earned Release From Prison: Impacts of a 2003 Law on Recidivism and Crime Costs, Revised (Archived)
The 2003 Washington State Legislature passed ESSB 5990, which increased “earned early release time” for certain types of offenders. The bill authorizes the Washington State Department of Corrections to release certain eligible offenders earlier if they have demonstrated good behavior in prison.
The Institute was directed by the Legislature to evaluate the effect of the 2003 law. Our overall recidivism findings remain consistent with those in the original November 2008 report; we strengthened the cost-benefit analysis for this revised version and find that the law generates benefits of $1.88 per dollar of cost.
Washington's Truancy Laws: Does the Petition Process Influence School and Crime Outcomes? (Archived)
In 2008, the Legislature directed the Institute to study the truancy provisions of the 1995 "Becca Bill." The bill changed several aspects of the compulsory school attendance laws in Washington. In particular, the bill requires that school districts file truancy petitions in juvenile court when students accumulate a specified number of unexcused absences.
From a policy standpoint, it is of interest to know whether the Becca truancy laws have had a causal impact on key student outcomes, such as graduation rates.
Unfortunately, despite our best attempt to analyze this question with rigorous statistical methods, we cannot provide a scientific answer as to whether the law is having a positive, negative, or no effect on student outcomes. Sometimes research can provide answers to central questions, and sometimes it cannot; this is a case of the latter.
The 1995 Becca laws were implemented statewide and a random assignment study—the type of study offering the best scientific evidence—was never possible or envisioned. In addition, the historical data available for our study do not allow us to measure a vital aspect of the Becca laws: the number of unexcused absences from school. Without this information, it is impossible to employ appropriate statistical methods to study the question of the Becca Bill’s effectiveness.
We do know from our analysis that students who receive truancy petitions are at very high risk of academic failure as well as future criminal involvement. For example, of all students in Washington during the 2002–03 school year, only 20 percent of students with petitions graduated from high school by 2008, compared with 77 percent of their non-petitioned peers. Similarly, 20 percent of the students with petitions were subsequently convicted of a crime in Washington compared to 4 percent of students without petitions.
Our inability to analyze the effectiveness of the Becca Bill stems from that fact that, even before their truancy filing, petitioned students were already at much higher risk for negative outcomes. For example, prior to receiving the truancy filing, petitioned youth had a GPA of just 1.3, compared with a GPA of 2.7 for non-petitioned students. And, prior to the filing, 31 percent of the petitioned students had previously been convicted of a crime compared with 8 percent of non petitioned students.
Given these differences, and without additional information, it is not possible to identify an appropriate comparison group with which to judge—in a scientifically rigorous way—whether the Becca Bill has had the effects the Legislature intended.
Washington State Juvenile Court Funding:
Applying Research in a Public Policy Setting (Archived)
During the last 15 years, the Washington State Legislature has taken a number of steps to develop an “evidence-based” juvenile justice system. The central concept has been to identify and implement strategies shown—through rigorous research—to reduce crime cost-effectively. In 2009, the Legislature turned its attention to the mechanism through which Washington’s 33 juvenile courts receive state dollars. The Institute was directed to report on the administration of the new funding mechanism. We also summarize key policy reforms over the past 15 years that have established an emphasis on providing evidence-based programs in Washington’s juvenile justice system.
Washington's Community Notification Law: A Survey of Law Enforcement (Archived)
Washington State's 1990 Community Protection Act requires released sex offenders to register with the sheriff in their county of residence within 24 hours of release. In addition, the Act expressly authorizes law enforcement agencies to notify the public when a sex offender with a high risk of reoffense settles in the community. This law, called "community notification," was the first of its kind in the country. In March 1993, the Institute surveyed sheriffs in all 39 counties and the chiefs of police in the ten largest cities regarding their use of the community notification law.
Community Notification: A Study of Offender Characteristics and Recidivism (Archived)
The Community Protection Act was implemented in Washington State in March 1990. One of the provisions of the Act, known as the community notification law, authorizes local law enforcement agencies to disseminate information to the public regarding convicted sex offenders who reside in the community. Washington State's community notification law was the first of its kind in the nation. Several other states have now enacted similar laws. This report provides the first examination of how the community notification law has been implemented in Washington State, who has been affected by it, and its impact on recidivism among sex offenders who were subjects of the law.
Validation of the Washington State Juvenile Court Assessment: Interim Report (Archived)
This report describes the results of an interim validation study. In collaboration with juvenile court professionals, the Institute developed a comprehensive risk assessment, the Washington State Juvenile Court Assessment (WSJCA), as specified in the 1997 Community Juvenile Accountability Act. For the courts to have confidence in the WSJCA, the risk level classification from the pre-screen needed to be validated for juvenile offenders in Washington State. Validating the pre-screen means determining how well it predicts recidivism rates for groups of youth. Adequately measuring recidivism requires selecting a representative cohort of youth rated on the assessment, and then waiting 2 1/2 years to measure their recidivism.
Washington's Coordination of Services Program for Juvenile Offenders: Outcome Evaluation and Benefit-Cost Analysis (Archived)
Coordination of Services (COS) is an educational program for low-risk juvenile offenders that provides information about services available in the community. The program is designed to help juvenile offenders avoid further involvement with the criminal justice system. COS currently serves about 600 youth per year in Washington State. The Washington State Institute for Public Policy (WSIPP) first evaluated COS in 2004 following its first year of implementation. As part of ongoing work to identify research- and evidence-based programming in juvenile justice, WSIPP re-evaluated COS to determine its current impact on recidivism. Based on the results from both of WSIPP’s evaluations of COS, we estimate that the program reduces recidivism by about 3.5 percentage points (from 20% to 16.5%).
Estimating Potential Cost Savings from Paying Parental Caregivers of Children with Developmental Disabilities: Preliminary Report
The 2025 Washington State Legislature directed the Washington State Institute for Public Policy to estimate the potential cost savings to the state if a policy were adopted allowing parents or other legally responsible individuals to become paid caregivers to their minor children with intellectual or developmental disability (I/DD).
In this preliminary report, we provide background on services and policy proposals in Washington. Additionally, we summarize our plans to quantify potential cost savings under a paid parental caregiver policy. Our final report, due November 2026, will present estimates of potential cost savings that could result from a paid parental caregivers policy. Specifically, we will examine the potential for a change in state costs based on families’ use of public benefits, children’s healthcare costs, or children’s out-of-home placements.
Evaluation of Washington's 1996 Juvenile Court Program (Early Intervention Program) for High-risk, First-time Offenders: Final Report (Archived)
The 1996 Washington State Legislature appropriated $2.35 million for a program called the juvenile court “Early Intervention Program” (EIP). The program’s goal was to prevent high-risk, first-time juvenile offenders from becoming further entrenched in the court system. Funds were awarded to 12 juvenile courts for the 1996 biennium on a competitive basis. At the request of the Juvenile Rehabilitation Administration, the Washington State Institute for Public Policy (Institute) conducted a study to determine if the EIP resulted in reduced recidivism. In early 1998, the Institute examined six-month outcomes and found that EIP produced no significant difference in recidivism rates. In the 1998 session, the Legislature discontinued funding the EIP, shifting the funds to research-based programs in Washington’s newly enacted Community Juvenile Accountability Act. This report confirms the Institute’s earlier findings that the Early Intervention Program did not show a statistically significant reduction in recidivism.
