This is a preview. Log in through your library . Abstract Psychometric modeling has become a frequently used statistical tool in research on scientific reasoning. We review psychometric modeling ...

Twenty years ago, a pair of researchers in England reported on a series of experiments in which they showed that very young children could, in the context of play, solve logic problems that they ...

Dreams have been described as dress rehearsals for real life, opportunities to gratify wishes, and a form of nocturnal therapy. A new theory aims to make sense of it all. Twenty years ago, a pair of ...