MYNORTHWEST NEWS

WSU Study: Fewer Washington teens using marijuana post legalization

Mar 20, 2019, 1:18 PM

marijuana washington, cannabis...

(AP Photo/Elaine Thompson, File)

(AP Photo/Elaine Thompson, File)

The legalization of marijuana in Washington state doesn’t appear to have convinced teenagers that pot is any cooler than it was before.

According to a new WSU study, marijuana use decreased significantly among 8th and 10th graders after legalization, and remained even for 12th graders (among those who work less than 11 hours a week at a job).

The element of work was a striking feature of the study. No matter what the grade — 8th, 10th, or 12th — those who had worked more than 11 hours a week tended to use marijuana more often than their jobless peers.

RELATED: Pedestrian deaths on the rise in states with legal marijuana

After legalization, 4.8 percent of non‑working 8th graders admitted to using pot in the previous 30 days, as opposed to 20.8 percent of their employed peers. With 10th graders, the difference was 13.9 percent versus 33.2 percent.

It was among 12th graders where the highest levels of marijuana use was seen, with 20.5 percent of non-working using marijuana in the last 30 days, and 36.7 percent of those working.

Washington legalized marijuana in 2012 and the first marijuana store opened in 2014.

RELATED: Vaping rises among Washington teens, alcohol use remains low

The research was lead by WSU College of Nursing Assistant Professor Janessa Graves, and used data from the state’s biennial Healthy Youth Survey from 2010 and 2016.

“Kids who work more often use substances, that’s not a shock,” Graves told WSU News. The study notes that such teens tend to have more disposable income, and come into contact with other adults who may being using marijuana.

“Kids learn a lot by working, in terms of responsibility,” Graves said. “But there are also pretty good data showing that kids who work engage in adult‑like behaviors earlier. I would say this for any parent of working kids: It’s important to know the quality of management and supervision at your child’s job. Be thoughtful about the quality of a particular workplace.”

MyNorthwest News

town hall seattle wedding...

KIRO Newsradio staff

Judge dismisses double-murder case against man accused of Seattle ax attacks

A King County judge dismissed the double-murder case against Liam Kryger Thursday.

4 hours ago

search for 19-year-old lake washington...

MyNorthwest Staff

Body of 19-year-old who went missing on Lake Washington recovered

The body of a 19-year-old man who went missing on Lake Washington was recovered Thursday.

4 hours ago

20 cats AirTag stolen vehicle Tacoma Truck...

Frank Lenzi

Deputies find 20 cats in stolen truck after AirTag tracks down vehicle in Tacoma

An AirTag led Pierce County Sheriff's Deputies to a stolen truck — and 20 cats — in Tacoma this week.

5 hours ago

Woodland park zoo sloth...

KIRO 7 News Staff

Woodland Park Zoo welcomes second sloth, hopes pair will ‘hang out’ soon

A 26-year-old female Hoffmann’s two-toed sloth named Jessie has arrived at Woodland Park Zoo as part of a national breeding program.

6 hours ago

tsunami...

Frank Lenzi

Alaska earthquake could send 20-foot tsunami waves to Washington coast in just 3.5 hours, new study warns

A new study from the Washington Geological Survey finds tsunami activity could last 24 hours or more, and the first wave might not be the biggest.

7 hours ago

kiro newsradio national edward r. murrow award...

Frank Lenzi

KIRO Newsradio wins 2026 National Edward R. Murrow Award for Breaking News Coverage

KIRO Newsradio 97.3 FM has won a 2026 National Edward R. Murrow Award for breaking news coverage of its reporting on the Seattle ICE protests that turned violent.

8 hours ago

WSU Study: Fewer Washington teens using marijuana post legalization