As a general principle, if you are collecting any kind of data about humans, and especially if you plan on presenting or writing about a research component of your project, ethics approval may be required. We strongly urge you to consult with your divisional research services office to make this determination.
Detailed information on policy and procedures related to research using human subjects, including information on the REB approvals process, can be found at the following links:
Activities Exempt from Human Ethics Review