There's a distinction between voices associated with psychiatric illness (often bad) and those (often good) that are found in the so - called normal population. (religion.blogs.cnn.com)
In a community sample, if the presence of early externalising behaviour assessed by currently available measures is used to designate kindergarten and first grade children in normal populations as high risk for later antisocial behaviour, the level of misclassification will be substantial.1 At least one half of the children who develop clinically important antisocial behaviour later on will not be picked up by the initial screen. (ebmh.bmj.com)
A more normal population of microbes in the gut can offset the bad players.» (discovermagazine.com)