The English comparative psychologist and social evolutionist Conway Lloyd Morgan (1852-1936) was one of the first to consistently apply the experimental method in observing animal behavior. To interpret animal behavior he formulated his "law of parsimony."
You can use different methods for paragraph development. Some writers may find that simply using an outline helps them to better enhance their paragraph creation skills, while others may discover that they need to develop topic sentences and examples first. Get an explanation of the term paragraph development with clear examples.