| | A thorough review of the questionnaire program inclusive of all logic branching, skip patterns and spelling. |
| | A first night review of the initial data to ensure that all skip patterns have been followed and that all open-ends have been adequately probed. Marginal data is checked to ensure data integrity. |
| | Each interviewers work is evaluated and our Quality Control department and training team proactively enhance the training process. |
| | Validate a minimum of 16% of each interviewers work on each study. Additional validation is conducted if requires. Monitoring programs |