ArticleAuthors: Boonlert Supadhiloke (2015)
In response to the widely publicized failure of most pollsters to predict the winner of the Bangkok governor election on 3 March 2013, this study examined the published results of opinion polls in the news media to see how they had affected the voter preference and what errors existed. The study analyzed a series of poll results by five major pollsters for the pre-election and exit polls during the governor election campaign from January to March 2013 and, then, compared them with the final results of governor election. The poll results lent partial support to the spiral of silence theory.
Among all pollsters, only NIDA Poll projected the right prediction for Democrat candidate M. R.... 
