Articles and resources tagged “Data validation”

Creative password schemes: While we always like to study best practices, sometimes it's the failures which are most illuminating—in this case an unusual password design. The plan was hatched by a client's client before we came in on the rush project, so I...; Read Article; BY: Ann Ray on February 21, 2006 | Last updated April 25, 2008; COMMENTS: 0; CATEGORIES: Questionnaires | Technology; TAGS: CAPI & CATI | Data validation | Passwords | Usability | Web surveys
Dealing with data cleaning: "What do you mean I have to clean the data? I used the Web so I wouldn't have to do any data entry." While Web and scannable surveys will minimize data entry costs, some degree of data cleaning is required...; Read Article; BY: Ann Ray on July 4, 2006 | Last updated April 25, 2008; COMMENTS: 0; CATEGORIES: Data Handling | Reporting; TAGS: Data cleaning | Data validation | Import & export | Open-ended questions | Postcoding
Preventing duplicate survey responses: A common concern is how to deal with duplicated survey responses. In practice, this is an issue when the benefit to multiple submits outweighs the effort of making them. For most surveys, the challenge is getting people to complete once....; Read Article; BY: Ann Ray on November 13, 2007 | Last updated April 28, 2008; COMMENTS: 0; CATEGORIES: Respondents | Technology; TAGS: Data validation | Passwords | Sampling | Web surveys