Читать книгу Statistics in Nutrition and Dietetics - Michael Nelson - Страница 17

In science, we rely on logic to interpret our observations. Our aim is usually to draw a conclusion about the ‘truth’ according to how ‘strong’ we think our evidence is. The type of observations we choose to collect, and how we collect them, is the focus of research design: ‘How are we going to collect the information we need to test our belief?’ The decision about whether evidence is ‘strong’ or ‘weak’ is the province of statistics: ‘Is there good evidence that our ideas are correct?’ As Sherlock Holmes put it, ‘It is a capital mistake to theorise before one has data’.³

There are two types of logic commonly applied to experience.