Survey Method & Design

 

Two deaf-blind subjects, a man and a woman, were used during two different sessions.

Each deaf-blind subject stood at a corner, holding up one of the cards shown below to solicit aid to cross the street.

HKNC Card Experimental Card
Photo of card reading "I am deaf and blind. Could you please help me cross this street. Thank You!" Photo of card reading "Please help me to CROSS STREET. I am both DEAF and BLIND, so TAP ME if you can help. Thank you."

Three interviewers waited at strategic locations, ready to interview people who passed by or guided the subject across.

After getting assistance to cross, the subject entered a nearby store, waited a few minutes while the interviews were completed and the sidewalk cleared, then approached the corner to solicit aid to cross back again.

Sample of questions asked of anyone who passed by or stopped to help the first subject

Sample of questions asked of people who helped the second subject across

Sample of questions asked of people who did not help the second subject across

 

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