CATI eliminates the need for separate editing and data entry tasks associated with manual systems. The possibility for coding or data entry errors is eliminated with CATI because it is impossible to accidentally record an improper response from outside the set of prelisted responses established for a given question.
Results can be tabulated in real time at any point in the study. Quick preliminary results can be beneficial in determining when certain questions can be eliminated because enough information has been obtained or when some additional questions are needed because of systems unexpected patterns uncovered in the earlier part of the interviewing process. Use of CATI systems continues to grow because decision makers have embraced the cost savings, quality control, and time-saving aspects of these systems.