She is best known for her co-authorship (with
Phillida Bunkle) of a
Metro magazine article that alleged that women had been experimented on, without their consent, at
National Women's Hospital in
Auckland. The article, titled 'The Unfortunate Experiment', led to the controversial
Cartwright Inquiry, which confirmed the article's allegations. The article and the subsequent inquiry are seen as a turning point in healthcare ethics in New Zealand. Coney has been involved in other women's health causes, and in 1984 co-founded with Bunkle
Women's Health Action to co-ordinate claims by women who had been injured by the
Dalkon Shield IUD. Coney was the co-founder of the feminist magazine
Broadsheet, which she co-edited for 14 years. She is the author or editor of 14 books, including the major Suffrage Centennial publication
Standing in the Sunshine (1993), which was also a television series. She wrote a regular column of political and social comment for the Sunday-Times for 16 years from 1986. She is also involved in the local politics of the
Piha area such as the unsuccessful campaign against the Piha cafe. She has also written a history of Piha, and is currently researching
Anzac soldiers from the Piha area. ==Political career==