Open learner models (OLM) are learner models which are accessible to the learner, allowing them to view, and sometimes modify,
their model. This openness may raise questions of learner trust in their learner model: if users do not agree with, or trust
the information they can see about themselves, their trust in the interaction will likely be reduced. Using a Wizard-of-Oz
approach, we consider learner trust and possibilities for developing trust in OLMs.