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Some aspects of the methodology have been challenged , and the authors debated their critics in academic journal s. Problems with the methodology included : a low sample size ; poor randomization ; the failure to include media owners , managers , or editors in the samples ; the inadequate use of proper polling techniques ; the use of biased questions ; point of view assertions by the studies authors that arbitrarily qualified some things as conservative or liberal ; the failure to adequately measure the general public 's attitudes ; and poor statistical analysis of the results .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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