Marna Miller, Katelyn Kelley - December 2022

The 2021 Washington State Legislature directed WSIPP to review the research for any relationships between adolescent substance use and adolescent nutrition on subsequent mental illness in early adulthood.

For substance use, we found that adolescent alcohol use was associated with an increased risk of later depression. Adolescent cannabis use was associated with an increased risk for depression and psychosis, but we found no evidence that adolescent misuse of opioids or cocaine is associated with mental illness in young adults.

For nutrition, we found that higher quality diet in adolescence was associated with a lower risk for later depression. Obesity during adolescence was associated with an increased risk for depression in young adults, especially in females. Finally, we found no evidence of a link between adolescent intake of omega-3 fatty acids and any mental illness in young adulthood.

Chasya Hoagland, Bethanne Barnes, Adam Darnell - June 2017

The Washington State Institute for Public Policy is directed to conduct an evaluation and benefit-cost analysis of the implementation of I-502, which legalizes recreational marijuana use for adults within the state. As a supplemental step, WSIPP's Board of Director's authorized WSIPP to analyze employment and wage data for employees in marijuana businesses.

We used data from The Washington State Liquor and Cannabis Board (LCB) combined with Unemployment Insurance (UI) wage data from the Washington State Employment Security Department (ESD) to analyze employment in Washington State businesses that have been issued marijuana licenses.

Roxanne Lieb - October 1996

In 1990, Washington State enacted a civil commitment law for persons found to be sexually violent predators. As of September 1996, 38 persons are housed at the Special Commitment Center in Monroe, Washington; 21 have been committed under the Act, and the others are awaiting trial. This paper summarizes records from the Special Commitment Center regarding the residents' criminal history, offense pattern, treatment history, and mental health diagnosis.

Sean Hanley, Steve Aos - September 2014

Initiative 502, passed by Washington voters in November 2012, legalized recreational marijuana use for adults in the state. The initiative directed WSIPP to evaluate the policy by considering benefits and costs across a number of key areas including public health, public safety, and criminal justice.

As part of this assignment, we reviewed the evaluation literature on 13 youth prevention programs. These programs are on the state Department of Behavioral Health and Recovery’s preliminary list of evidence-based programs with marijuana prevention outcomes.

To view an update to this report, please click here.

Matt Lemon, Sean Hanley - February 2014

In 1998, Washington State voters legalized the use of medical marijuana for certain medical purposes. Very little is known about patient access to medical marijuana and other implications of the law. At the local level, some cities and counties have prohibited collective cultivation of medicinal marijuana. Most Washington residents, however, live in areas that allow collective gardens.

This report describes local regulations regarding medical marijuana.

Marna Miller, Rebecca Xie - October 2022

In 2021, the Washington State Health Care Authority (HCA) conducted a survey of adults in Washington to better understand the prevalence of gambling and problem gambling. HCA contracted with WSIPP to conduct additional analyses.

WSIPP’s analysis found that fewer than half of respondents reported they had gambled in the past 12 months. Of those who had gambled, 3.5% were classified as problem gamblers. Statistically significant differences were detected in the prevalence of gambling and problem gambling among some different demographic populations (demographics collected include gender, marital status, ethnicity, age, education, military service, employment, type of insurance, and geographic region). Compared to those who gambled only in brick-and-mortar establishments, online gamblers were significantly more likely to be problem gamblers. Gamblers who self-identified as having problems with substance use, mental health, or other behaviors, were more likely to be problem gamblers than others not reporting these problems. Most of the population said they thought the harms of gambling outweighed the benefits. A similar proportion said the availability in Washington was fine—neither too available nor not available enough.