This had led to the selection of these three researchers rather than others, and these particular people were influenced in their selection and interpretation of the data they examined by their own preexisting viewpoints. Second, social contexts which, on the face of it, appear very similar are in fact very different from each other. Research conclusions which may apply in one, for example in a primary school, may be very wide of the mark in another, even another primary school. As was noted in Chapter 5, educational settings in particular differ in very important ways, so that any attempt to establish a widely generalizable 'truth' is flawed.