During the occupation of West Germany after the Second World War, the American authorities commissioned polls to assess the values and opinions of ordinary Germ

In this series of interlocking essays, which had their start as lectures inspired by the presidency of Barack Obama, Robert Burns Stepto sets canonical works of

During the occupation of West Germany after the Second World War, the American authorities commissioned polls to assess the values and opinions of ordinary Germ

We shall examine the validity of 16 experimental designs against 12 common threats to valid inference. By experiment we refer to that portion of research in whi

Sections include: experiments and generalised causal inference; statistical conclusion validity and internal validity; construct validity and external validity;