This step-by-step guide provides resources and advice on developing effective questionnaires. It is designed for service providers and agency leaders in the child and youth mental health and addictions sector.

Throughout this resource, you will find practical tips on:

• Embedding Equity, Diversity, Inclusion, and Anti-Racism (EDIA-R) when designing your questionnaires, to ensure cultural relevance and minimize bias in the data collection process.
• Co-developing questionnaires with young people and family members to ensure a more accurate and meaningful data collection process.