From 1973 to 1979, Dr Richard Benton and his team interviewed 6,470 Māori families throughout the North Island of New Zealand. A total of 6,916 household heads took part in the survey, supplying extensive information about their knowledge of the language, their use of it in a variety of situations, and their attitudes and experiences related to the language. In addition, they contributed information about the age, iwi and hapū ...