In the film "Blade Runner", what is the test called that identifies whether or not a person is a replicant?

The Voight Kampff test is used in the 1982 film "Blade Runner". It is a test used in the year 2019 by the California Los Angeles Police Department's Blade Runners. They have a test machine which assists in the testing of individuals to see whether they are replicants or not. It measures bodily functions such as respiration, heart rate, blushing, and eye movement in response to emotionally provocative questions. In the end the test is designed to distinguish androids from humans by determining the subject's ability to empathize.

Harrison Ford stars in the fascinating, dark and imaginative vision of the world where policemen as Blade Runners track engineered humans. It is 2019 and the police department (LAPD) forces Rick Deckard (Ford) out of retirement to hunt 4 genetically engineered humans who are on Earth. Designed to do difficult, hazardous work, the manufactured humans are stronger, faster, and smarter than non engineered humans. They feel no pain or remorse; they are almost totally indistinguishable from natural human beings. Now the engineered humans are killing people and Deckard must stop them to protect people and their key social interests.

"Blade Runner" is a science fiction film that was directed by Ridley Scott and written by Hampton Fancher and David Peoples. Starring Ford, Rutger Hauer, Sean Young, Edward James Olmos, M. Emmet Walsh, and Daryl Hannah, the film is loosely based on Philip K. Dick's novel 'Do Androids Dream of Electric Sheep?' (1968).