CHAYA Study Timeline
Take a look at all the progess we've made in the last 10+ years
June 2024 —May 2025
August 2025
CHAYA 3.0 Launch Announcement
Development of new study measure
July 2024 — July 2025
APRIL 2024
September 2025
CHAYA 3.0 data collection begins
CHAYA funding renewed...Again!
Participant Re-engagement
CHAYA Study Timeline
Take a look at all the progess we've made in the last 10+ years
SEPTEMBER 2022 — JUNE 2023
August 2020 — September 2021
SEPTEMBER 2021 — OCTOBER 2022
RENEWAL COHORT:Wave 4
RENEWAL COHORT:Wave 2
RENEWAL COHORT:Wave 3
MARCH 2022 — June 2023
MARCH 2021 — MAY 2022
PARENT COHORT:Wave 8
PARENT COHORT:Wave 7
CHAYA Study Timeline
Take a look at all the progess we've made in the last 10+ years
JUNE 2019 — AUGUST 2020
January 2019
RENEWAL COHORT: Recruited
RENEWAL COHORT:Wave 1
MARCH 2019 — MARCH 2020
January 2018
MARCH 2020 — MAY 2021
CHAYA funding renewed
PARENT COHORT:Wave 5
PARENT COHORT:Wave 6
CHAYA Study Timeline
Take a look at all the progess we've made in the last 10+ years
APRIL 2016 — JUNE 2017
March 2014 — March 2015
PARENT COHORT:Wave 3
PARENT COHORT:Wave 1
ApRIl 2015 — JUNE 2016
January 2013
ApRIl 2017 — APRIL 2018
PARENT COHORT:Wave 2
CHAYA recieves funding
PARENT COHORT:Wave 4
The fourth wave of data collection begins for parent cohort. Surveys are now done online.
Renewal cohort recruitment begins across various Los Angeles County universities and surrounding areas of CHLA.
The research team re-engages former CHAYA participants and gauges their interest in the next phase of the study.
The third wave of data collection begins for parent cohort.
The CHAYA funding has been renewed a second time!
The launch of the third phase of the CHAYA project is anounced. Recruitment begins.
The seventh wave of data collection begins for parent cohort. Surveys remains online.
The second wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The fourth wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The first wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The Second wave of data collection begins for parent cohort.
The research team begins developming a new measure to be piloted and used in the upcoming study.
Renewal cohort recruitment begins across various Los Angeles County universities and surrounding areas of CHLA.
The eighth wave of data collection begins for parent cohort. The survey remains online.
The sixth wave of data collection begins for parent cohort. Surveys remains online.
The third wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The first wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The fifth wave of data collection begins for parent cohort. The survey remains online.
The CHAYA project receives funding from the National Institute on Drug Abuse (NIDA) to examine the natural history of cannabis use among young adult users and how their cannabis practices evolved over time.
The sixth wave of data collection begins for parent cohort. Surveys remains online.
The fifth wave of data collection begins for parent cohort. The survey remains online.
The first wave of data collection begins for parent cohort.
Following California's legalization of recreational cannabis in 2016, CHAYA secured funds to study the parent cohort (N=366) and assess the effects of legalization on their cannabis practices and health outcomes. Additionally, CHAYA aims to investigate the impact of cannabis legalization on a younger cohort of 18-20-year-olds, who can't access recreational cannabis but can obtain medical cannabis under state policy.
Following California's legalization of recreational cannabis in 2016, CHAYA secured funds to study the parent cohort (N=366) and assess the effects of legalization on their cannabis practices and health outcomes. Additionally, CHAYA aims to investigate the impact of cannabis legalization on a younger cohort of 18-20-year-olds, who can't access recreational cannabis but can obtain medical cannabis under state policy.
Baseline interviews and surveys will be conducted virutally face-to-face.
Study Timeline
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Transcript
CHAYA Study Timeline
Take a look at all the progess we've made in the last 10+ years
June 2024 —May 2025
August 2025
CHAYA 3.0 Launch Announcement
Development of new study measure
July 2024 — July 2025
APRIL 2024
September 2025
CHAYA 3.0 data collection begins
CHAYA funding renewed...Again!
Participant Re-engagement
CHAYA Study Timeline
Take a look at all the progess we've made in the last 10+ years
SEPTEMBER 2022 — JUNE 2023
August 2020 — September 2021
SEPTEMBER 2021 — OCTOBER 2022
RENEWAL COHORT:Wave 4
RENEWAL COHORT:Wave 2
RENEWAL COHORT:Wave 3
MARCH 2022 — June 2023
MARCH 2021 — MAY 2022
PARENT COHORT:Wave 8
PARENT COHORT:Wave 7
CHAYA Study Timeline
Take a look at all the progess we've made in the last 10+ years
JUNE 2019 — AUGUST 2020
January 2019
RENEWAL COHORT: Recruited
RENEWAL COHORT:Wave 1
MARCH 2019 — MARCH 2020
January 2018
MARCH 2020 — MAY 2021
CHAYA funding renewed
PARENT COHORT:Wave 5
PARENT COHORT:Wave 6
CHAYA Study Timeline
Take a look at all the progess we've made in the last 10+ years
APRIL 2016 — JUNE 2017
March 2014 — March 2015
PARENT COHORT:Wave 3
PARENT COHORT:Wave 1
ApRIl 2015 — JUNE 2016
January 2013
ApRIl 2017 — APRIL 2018
PARENT COHORT:Wave 2
CHAYA recieves funding
PARENT COHORT:Wave 4
The fourth wave of data collection begins for parent cohort. Surveys are now done online.
Renewal cohort recruitment begins across various Los Angeles County universities and surrounding areas of CHLA.
The research team re-engages former CHAYA participants and gauges their interest in the next phase of the study.
The third wave of data collection begins for parent cohort.
The CHAYA funding has been renewed a second time!
The launch of the third phase of the CHAYA project is anounced. Recruitment begins.
The seventh wave of data collection begins for parent cohort. Surveys remains online.
The second wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The fourth wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The first wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The Second wave of data collection begins for parent cohort.
The research team begins developming a new measure to be piloted and used in the upcoming study.
Renewal cohort recruitment begins across various Los Angeles County universities and surrounding areas of CHLA.
The eighth wave of data collection begins for parent cohort. The survey remains online.
The sixth wave of data collection begins for parent cohort. Surveys remains online.
The third wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The first wave of data collection begins for renewal cohort. Surveys are conducted face-to-face virtually
The fifth wave of data collection begins for parent cohort. The survey remains online.
The CHAYA project receives funding from the National Institute on Drug Abuse (NIDA) to examine the natural history of cannabis use among young adult users and how their cannabis practices evolved over time.
The sixth wave of data collection begins for parent cohort. Surveys remains online.
The fifth wave of data collection begins for parent cohort. The survey remains online.
The first wave of data collection begins for parent cohort.
Following California's legalization of recreational cannabis in 2016, CHAYA secured funds to study the parent cohort (N=366) and assess the effects of legalization on their cannabis practices and health outcomes. Additionally, CHAYA aims to investigate the impact of cannabis legalization on a younger cohort of 18-20-year-olds, who can't access recreational cannabis but can obtain medical cannabis under state policy.
Following California's legalization of recreational cannabis in 2016, CHAYA secured funds to study the parent cohort (N=366) and assess the effects of legalization on their cannabis practices and health outcomes. Additionally, CHAYA aims to investigate the impact of cannabis legalization on a younger cohort of 18-20-year-olds, who can't access recreational cannabis but can obtain medical cannabis under state policy.
Baseline interviews and surveys will be conducted virutally face-to-face.