[[Ivan Pavlov]]'s work on [[classical conditioning]] was pivotal. It became combined with the concepts developed in functionalism and the field of [[behavioral psychology]] was born (see [[B.F. Skinner]]), and it was hoped that psychology could became a [[hard science]] like physics with mathematical rigor. | [[Ivan Pavlov]]'s work on [[classical conditioning]] was pivotal. It became combined with the concepts developed in functionalism and the field of [[behavioral psychology]] was born (see [[B.F. Skinner]]), and it was hoped that psychology could became a [[hard science]] like physics with mathematical rigor. |