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Numerous theories of child development have been proposed by psychologists, including cognitive, psychoanalytic, and behavioral theories.

Child development that occurs from birth to adulthood was largely ignored throughout much of history. Children were often viewed simply as small versions of adults and little attention was paid to the many advances in cognitive abilities, language usage, and physical growth that occurs during childhood and adolescence.

Interest in the field of child development finally began to emerge early in the 20th-century, but it tended to focus on abnormal behavior. Eventually, researchers became increasingly interested in other topics including typical child development as well as the influences on development.

An understanding of child development is essential, allowing us to fully appreciate the cognitive, emotional, physical, social and educational growth that children go through from birth and into early adulthood. Some of the major theories of child development are known as grand theories; they attempt to describe every aspect of development, often using a stage approach. Others are known as mini-theories; they instead focus only on a fairly limited aspect of development, such as cognitive or social growth.

The following are just a few of the many child development theories that have been proposed by theorists and researchers. More recent theories outline the developmental stages of children and identify the typical ages at which these growth milestones occur.

Sigmund Freud

The theories proposed by Sigmund Freud stressed the importance of childhood events and experiences, but almost exclusively focused on mental disorders rather that normal functioning.

According to Freud, child development is described as a series of 'psychosexual stages.' In "Three Essays on Sexuality" (1915), Freud outlined these stages as oral, anal, phallic, latency and genital. Each stage involves the satisfaction of a libidinal desire and can later play a role in adult personality. If a child does not successfully complete a stage, Freud suggested that he or she would develop a fixation that would later influence adult personality and behavior. Learn more in this article on Freud’s stages of psychosexual development.

Erik Erikson

Theorist Erik Erikson also proposed a stage theory of development, but his theory encompassed human growth throughout the entire human lifespan. Erikson believed that each stage of development was focused on overcoming a conflict. For example, the primary conflict during the adolescent period involves establishing a sense of personal identity. Success or failure in dealing with the conflicts at each stage can impact overall functioning. During the adolescent stage, for example, failure to develop an identity results in role confusion. Learn more about this theory in this article on Erikson’s stages of psychosocial development.

Theorist Jean Piaget suggested that children think differently than adults and proposed a stage theory of cognitive development. He was the first to note that children play an active role in gaining knowledge of the world. According to his theory, children can be thought of as "little scientists" who actively construct their knowledge and understanding of the world. Learn more in this article on Piaget’s stages of cognitive development.

Behavioral theories of child development focus on how environmental interaction influences behavior and are based upon the theories of theorists such as John B. Watson, Ivan Pavlov and B. F. Skinner. These theories deal only with observable behaviors. Development is considered a reaction to rewards, punishments, stimuli and reinforcement. This theory differs considerably from other child development theories because it gives no consideration to internal thoughts or feelings. Instead, it focuses purely on how experience shapes who we are. Learn more about these behavioral theories in these articles on classical conditioning and operant conditioning.

John Bowlby

There is a great deal of research on the social development of children. John Bowbly proposed one of the earliest theories of social development. Bowlby believed that early relationships with caregivers play a major role in child development and continue to influence social relationships throughout life. Learn more in this overview of attachment theory.

Albert Bandura

Psychologist Albert Bandura proposed what is known as social learning theory. According to this theory of child development, children learn new behaviors from observing other people. Unlike behavioral theories, Bandura believed that external reinforcement was not the only way that people learned new things. Instead, intrinsic reinforcements such as a sense of pride, satisfaction and accomplishment could also lead to learning. By observing the actions of others, including parents and peers, children develop new skills and acquire new information.

Lev Vygotsky

Another psychologist named Lev Vygotsky proposed a seminal learning theory that has gone on to become very influential, especially in the field of education. Like Piaget, Vygotsky believed that children learn actively and through hands-on experiences. His sociocultural theory also suggested that parents, caregivers, peers and the culture at large were responsible for the development of higher order functions.

As you can see, some of psychology's best known thinkers have developed theories to help explore and explain different aspects of child development. Today, contemporary psychologists often draw on a variety of theories and perspectives in order to understand how kids grow, behave and think.

By visiting the rest of the Psychology site you can find a wealth of free psychology articles and resources, which include:

References

Berk, Laura E. (2009). Child Development. 8th ed. United States of America: Pearson Education, Inc.

Erikson E (1968), Identity, Youth, and Crisis, New York: Norton

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Motivation is the force that initiates, guides and maintains goal-oriented behaviors. It is what causes us to take action, whether to grab a snack to reduce hunger or enroll in college to earn a degree. The forces that lie beneath motivation can be biological, social, emotional or cognitive in nature.

Researchers have developed a number of different theories to explain motivation. Each individual theory tends to be rather limited in scope. However, by looking at the key ideas behind each theory, you can gain a better understanding of motivation as a whole.?

According to instinct theories, people are motivated to behave in certain ways because they are evolutionarily programmed to do so. An example of this in the animal world is seasonal migration. These animals do not learn to do this, it is instead an inborn pattern of behavior.

William James created a list of human instincts that included such things as attachment, play, shame, anger, fear, shyness, modesty and love. The main problem with this theory is that it did not really explain behavior, it just described it. By the 1920s, instinct theories were pushed aside in favor of other motivational theories, but contemporary evolutionary psychologists still study the influence of genetics and heredity on human behavior.?

The incentive theory suggests that people are motivated to do things because of external rewards. For example, you might be motivated to go to work each day for the monetary reward of being paid. Behavioral learning concepts such as association and reinforcement play an important role in this theory of motivation.?

According to the drive theory of motivation, people are motivated to take certain actions in order to reduce the internal tension that is caused by unmet needs. For example, you might be motivated to drink a glass of water in order to reduce the internal state of thirst. This theory is useful in explaining behaviors that have a strong biological component, such as hunger or thirst. The problem with the drive theory of motivation is that these behaviors are not always motivated purely by physiological needs. For example, people often eat even when they are not really hungry.

The arousal theory of motivation suggests that people take certain actions to either decrease or increase levels of arousal. When arousal levels get too low, for example, a person might watch and exciting movie or go for a jog. When arousal levels get too high, on the other hand, a person would probably look for ways to relax such as meditating or reading a book. According to this theory, we are motivated to maintain an optimal level of arousal, although this level can vary based on the individual or the situation.

Humanistic theories of motivation are based on the idea that people also have strong cognitive reasons to perform various actions. This is famously illustrated in Abraham Maslow's hierarchy of needs, which presents different motivations at different levels. First, people are motivated to fulfill basic biological needs for food and shelter, as well as those of safety, love and esteem. Once the lower level needs have been met, the primary motivator becomes the need for self-actualization, or the desire to fulfill one's individual potential.

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