Jillian Halladay (she/her)
@drjillhalladay.bsky.social
RN, PhD Epidemiologist focusing on youth co-occurring substance use & mental health concerns @ McMaster School of Nursing & Peter Boris Centre for Addictions Research. #CIHR_ImpactECR www.jillianhalladay.com
Looking for an accessible resource to help students or health professionals grasp the essentials of reliability & validity?
Look no further! Check out our new Research Made Simple article: "Health measurement properties: what you need to know about reliability & validity"
doi.org/10.1136/ebnu...
Look no further! Check out our new Research Made Simple article: "Health measurement properties: what you need to know about reliability & validity"
doi.org/10.1136/ebnu...
Health measurement properties: what you need to know about reliability and validity
This paper updates and extends Research Made Simple: Validity and Reliability in Quantitative Studies1 and is a primer to answer: How do we measure health-related concepts and know we are doing it cor...
doi.org
August 27, 2025 at 10:30 PM
Looking for an accessible resource to help students or health professionals grasp the essentials of reliability & validity?
Look no further! Check out our new Research Made Simple article: "Health measurement properties: what you need to know about reliability & validity"
doi.org/10.1136/ebnu...
Look no further! Check out our new Research Made Simple article: "Health measurement properties: what you need to know about reliability & validity"
doi.org/10.1136/ebnu...
Our second multiverse analysis paper is now live!
• Co-occurring smoking or vaping and emotional problems were common
• Associations were largely explained by behavioural symptoms & other substances
• Researcher decisions matter
www.sciencedirect.com/science/arti...
• Co-occurring smoking or vaping and emotional problems were common
• Associations were largely explained by behavioural symptoms & other substances
• Researcher decisions matter
www.sciencedirect.com/science/arti...
Exploring a diverse set of specifications related to associations between adolescent smoking, vaping, and emotional problems: a multiverse analysis
The epidemiological landscape of adolescent smoking, vaping, and emotional problems has drastically changed over the past two decades. Whether and why…
www.sciencedirect.com
May 22, 2025 at 11:05 AM
Our second multiverse analysis paper is now live!
• Co-occurring smoking or vaping and emotional problems were common
• Associations were largely explained by behavioural symptoms & other substances
• Researcher decisions matter
www.sciencedirect.com/science/arti...
• Co-occurring smoking or vaping and emotional problems were common
• Associations were largely explained by behavioural symptoms & other substances
• Researcher decisions matter
www.sciencedirect.com/science/arti...
SO excited to be joining the Offord Centre as a core member!
Meet @drjillhalladay.bsky.social, the newest core member with the Offord Centre.
A registered nurse and clinical epidemiologist, Halladay is bringing her experiences researching the connection between substance use and mental health concerns to the centre.
offordcentre.com/meet-jillian...
A registered nurse and clinical epidemiologist, Halladay is bringing her experiences researching the connection between substance use and mental health concerns to the centre.
offordcentre.com/meet-jillian...
April 15, 2025 at 2:38 PM
SO excited to be joining the Offord Centre as a core member!
Reposted by Jillian Halladay (she/her)
Meet @drjillhalladay.bsky.social, the newest core member with the Offord Centre.
A registered nurse and clinical epidemiologist, Halladay is bringing her experiences researching the connection between substance use and mental health concerns to the centre.
offordcentre.com/meet-jillian...
A registered nurse and clinical epidemiologist, Halladay is bringing her experiences researching the connection between substance use and mental health concerns to the centre.
offordcentre.com/meet-jillian...
April 15, 2025 at 1:55 PM
Meet @drjillhalladay.bsky.social, the newest core member with the Offord Centre.
A registered nurse and clinical epidemiologist, Halladay is bringing her experiences researching the connection between substance use and mental health concerns to the centre.
offordcentre.com/meet-jillian...
A registered nurse and clinical epidemiologist, Halladay is bringing her experiences researching the connection between substance use and mental health concerns to the centre.
offordcentre.com/meet-jillian...
Are you doing a study exploring longitudinal relationships between substance use and mental health problems among youth? Unsure what covariates to include and how to report on them?
Check-out our new meta-epidemiological review!
doi.org/10.1016/j.dr...
Check-out our new meta-epidemiological review!
doi.org/10.1016/j.dr...
April 14, 2025 at 11:35 AM
Are you doing a study exploring longitudinal relationships between substance use and mental health problems among youth? Unsure what covariates to include and how to report on them?
Check-out our new meta-epidemiological review!
doi.org/10.1016/j.dr...
Check-out our new meta-epidemiological review!
doi.org/10.1016/j.dr...
Reposted by Jillian Halladay (she/her)
A phenomenal #CPA2025 @apadivision50.bsky.social! Devastating to hear the tremendous damage inflicted by senseless HHS/NIH/FDA cuts to so many in our community, and also so nourishing to be together and support each other during these times. As promised, a new starter pack: go.bsky.app/SnnMai2
April 5, 2025 at 4:13 PM
A phenomenal #CPA2025 @apadivision50.bsky.social! Devastating to hear the tremendous damage inflicted by senseless HHS/NIH/FDA cuts to so many in our community, and also so nourishing to be together and support each other during these times. As promised, a new starter pack: go.bsky.app/SnnMai2
Excited to be attending #CPA2025 @apadivision50.bsky.social looking forward to connecting & reconnecting with addiction psychology researchers and friends here over the next couple days!
April 3, 2025 at 2:06 PM
Excited to be attending #CPA2025 @apadivision50.bsky.social looking forward to connecting & reconnecting with addiction psychology researchers and friends here over the next couple days!
Q: Do school-based prevention programs impact co-occurring alcohol use and psychological distress during adolescence? 🍺😟
A: We found some prevent co-occurring problems, others prevent only alcohol use, & preventing distress alone needs more research.
bit.ly/3VR1fEq
A: We found some prevent co-occurring problems, others prevent only alcohol use, & preventing distress alone needs more research.
bit.ly/3VR1fEq
Do school-based prevention programs impact co-occurring alcohol use and psychological distress during adolescence? | Psychological Medicine | Cambridge Core
Do school-based prevention programs impact co-occurring alcohol use and psychological distress during adolescence?
bit.ly
December 23, 2024 at 1:19 PM
Q: Do school-based prevention programs impact co-occurring alcohol use and psychological distress during adolescence? 🍺😟
A: We found some prevent co-occurring problems, others prevent only alcohol use, & preventing distress alone needs more research.
bit.ly/3VR1fEq
A: We found some prevent co-occurring problems, others prevent only alcohol use, & preventing distress alone needs more research.
bit.ly/3VR1fEq
Very excited to share our new pub where we ran 7,680 unique models exploring associations between adolescent alcohol use and emotional problems! bit.ly/4gGIP1o
Across the multiverse: exploring a diverse set of specifications related to cross-sectional and prospective associations between adolescent alcohol use and emotional problems | Psychological Medicine ...
Across the multiverse: exploring a diverse set of specifications related to cross-sectional and prospective associations between adolescent alcohol use and emotional problems
bit.ly
December 17, 2024 at 1:50 PM
Very excited to share our new pub where we ran 7,680 unique models exploring associations between adolescent alcohol use and emotional problems! bit.ly/4gGIP1o
Hello BlueSky folks! Hoping to use this space to compassionately share, connect, & learn together to improve our understanding of and strategies for youth substance use & mental health concerns. 🔆
December 8, 2024 at 2:41 PM
Hello BlueSky folks! Hoping to use this space to compassionately share, connect, & learn together to improve our understanding of and strategies for youth substance use & mental health concerns. 🔆