Those efforts led nowhere because scientists, wisely, could not agree on single indicators. (dotearth.blogs.nytimes.com)
If an insurance agent knows nothing else about your health situation, your height and weight may be the biggest single indicator. (insurancegisthq.com)
«According to Unesco (the United Nations agency which promotes knowledge), the biggest single indicator of whether a child is going to thrive at school and in work is whether or not they read for pleasure. (bbc.co.uk)