In the very broadest sense, inorganic chemicals and compounds are defined by what they are not; they are not organic in nature, such that anything beyond biological, hydrocarbon, and other similar carbon-based chemicals may be considered inorganic.
Family Development Theory. n Family Development theory is an interdisciplinary approach of examining the family. n Involves biological, social, and psychological perspectives of development. Biological. n Biological needs in a family vary depending on the family structure and ages of its members.
Family Development Theory. Traditional stage theories describe family life in stages usually marked by children's ages. Over the 20th century, such theories were sometimes called Family Stages, Family Life Cycle, and Family Development. Perhaps the best known was the 8-stage model outlined by Duvall and Hill.