7  Data Validation

7.1 Introduction to Data Validation

7.2 Importance of Data Quality

7.3 Common Data Errors in Surveys

7.4 Techniques for Data Cleaning

7.5 Automated vs. Manual Validation

7.6 Handling Missing Data

7.7 Detecting Outliers & Inconsistencies

7.8 Duplicate Response Detection

7.9 Validation in Digital Surveys

7.10 Best Practices for Data Accuracy