Jillian Halladay (she/her)

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...

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...

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…

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...

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...

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...

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!

Incredibly inspiring start to the conference.

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

Hopefully it isn’t stalled too long - it’s important methodological work ☺️

Thank you so much! Do you mean this paper? doi.org/10.1177/2515...

Very keen to see what you find! That is a good idea about expanding the post ☺️

Thanks so much for your positive feedback and sharing the study! Very happy to talk to anyone keen to explore these methods in other datasets.

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. 🔆