The Adjusted Refusal Rate is based on the refusal rate of B visa applications. B visas are adjudicated based on applicant interviews; the interviews generally last between 60 and 90 seconds. Due to time constraints, adjudicators profile applicants. Certain demographics, such as young adults who are single and unemployed, almost never receive visas, unless they articulate a compelling reason. Adjudicators are evaluated on how fast they carry out interviews, not the quality of adjudication decisions. The validity of B visa decisions is not evaluated.