Why did behaviorism dominate early psychology research if learning?

Behaviorism dominated early in psychology because it was the first thing doctors noticed toward humans behavior reaction to thing that occurred to them and with this they were able to understand more and more how the human emotions work and react together in different situations. Behaviorism also concludes animal change in emotion to towards frustration and being calm this was a big step in psychology.

answer; i believe the correct answer is enlightenment;

the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances