How did the object of study in psychology change over the history of the field since the 19th century?

How did the object of study in psychology change over the history of the field since the 19th century? Behaviorists studied objectively observable behavior partly in reaction to the psychologists of the mind who were studying things that were not directly observable.

Technically, it makes it easier on the teacher to know what time we leave

There is nothing inherently wrong with being gay. speaking generally, opposition to gays are usually judged on people's moral basis whether it be religion, experience or other factors. to conclude, there is no objective answer to this question only subjective ones that rely on people's idea of what is right and wrong.