I currently teach courses in statistics, perception, and the history of psychological ideas. While these courses might appear to be disparate, there are all special cases of one general theme: the conjectural nature of knowledge. Whether we are studying sensory-motor phenomena (perception), formalization of empirical hypotheses (statistics), or the development of scientific theories (history of psychological ideas), all of these domains of inquiry share a speculative, hypothetical, and conjectural character. Percepts, statistics, and theories are simply our best guesses about the phenomenon in question. The only difference among them is their level of abstraction.
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