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.

it is the boston port act

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.