Biased polar questions in Sign Language of the Netherlands: Video data

Video data of the productions of 6 signers of Sign Language of the Netherlands in a production experiment on biased polar questions. Each video file comprises five questions from one participant in one experimental condition. 

File naming convention: participant number - version (related to presentation of stimuli) - condition (- ignore; file identification code for research team)

Condition names:

declarative = declarative sentence (participants 03 to 07)

baseline = regular polar question

PosNeg etc. = first abbreviation indicates original speaker bias (positive/neutral/negative); second abbreviation indicates contextual evidence (positive/neutral/negative).