The modern history of biology shows how Darwin's selectionist theory has replaced instructionist theories in explaining the operations of living things: first with inheritance through the gene pool of the 1850s, and second with the replacement of a template theory of immune system function in the 1960s. Today scholars in several disciplines…

Scholars, practitioners, and laypeople at one time or another have questioned what learning is and how it can be measured once it is defined. Many use the term interchangeably with growth, change, development, knowledge, education, cognition, or acquisition as it is commonly considered in educational practice. However, most generally assume a…