To create interactive quizzes or activities to engage employees during training sessions on 'Risk-Based Thinking' in ISO 9001:2015, you can incorporate the following strategies:

1. **Scenario-Based Quizzes**: Develop scenarios that employees might encounter in their roles and ask them to identify potential risks and suggest mitigation strategies. This helps them apply risk-based thinking in practical situations.

2. **Role-Playing Games**: Organize role-playing activities where employees act out different roles within a process and identify risks and opportunities from their perspectives. This encourages them to think critically about risk management.

3. **Interactive Workshops**: Conduct workshops where employees work in groups to map out processes using flowcharts and identify what can go wrong at each step. They can then discuss and propose actions to address these risks.

4. **Risk Assessment Competitions**: Create a friendly competition where teams assess risks in a given process and present their findings and solutions. This can motivate employees to engage deeply with the material.

5. **Use of Technology**: Utilize online platforms or apps to create interactive quizzes that employees can take on their devices. This can include multiple-choice questions, drag-and-drop activities, or matching exercises related to risk-based thinking.

By using these interactive methods, you can make the training sessions more engaging and ensure that employees internalize the concepts of risk-based thinking effectively.