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A challenge for adolescence is puberty. Students who develop early or late are self-conscious about their looks and are treated differently.

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Physical Development | HHS Office of Population Affairs

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The age of puberty is getting younger for children.   For girls, adolescence begins around the age of 9-14 and boy is from 10 - 17.   Girls generally get their periods between the ages of 12-13.
Early puberty in girls is associated with "increased stress, obesity, and endocrine disrupting."
Late puberty for boys is associated with "depression and conflict with parents, and more likely to be bullied."( Child Growth and Development by Jennifer Paris, Antoinette Ricardo, & Dawn Rymond)

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Brain Growth Frontal Lobe is maturing. However, it is not fully developed yet. The frontal lobe is in charge of behavior and emotions. This is why teens engage in risk-taking behaviors. The frontal lobe is responsible for judgment, impulse control, and planning. The inability to plan is why teens often don't do their work in school on time.
Neurotransmitters - Adolescent brains are sensitive to dopamine, which is the "rewards" feeling and that is possibly why there is risk taking behavior as well as the frontal lobe immaturity. Oxytocin "makes social connections more rewarding." When dopamine and oxytocin are excreted, adolescents seek excitement in their lives and peer-bonding.

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7 of the Best-Known Theories of Child Development (verywellmind.com)

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Child development theories focus on explaining how children change and grow over the course of childhood. These developmental theories center on various aspects of growth, including social, emotional, and cognitive development.

The study of human development is a rich and varied subject. We all have personal experience with development, but it is sometimes difficult to understand how and why people grow, learn, and act as they do.

Why do children behave in certain ways? Is their behavior related to their age, family relationships, or individual temperaments? Developmental psychologists strive to answer such questions as well as to understand, explain, and predict behaviors that occur throughout the lifespan.

In order to understand human development, a number of different theories of child development have arisen to explain various aspects of human growth.

History of Developmental Theories

Child development that occurs from birth to adulthood was largely ignored throughout much of human 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 occur 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.

More recent theories outline the developmental stages of children and identify the typical ages at which these growth milestones occur.

Why Developmental Theories are Important

Developmental theories provide a framework for thinking about human growth and learning. But why do we study development? What can we learn from psychological theories of development? If you have ever wondered about what motivates human thought and behavior, understanding these theories can provide useful insight into individuals and society.

An understanding of child development is essential because it allows us to fully appreciate the cognitive, emotional, physical, social, and educational growth that children go through from birth and into early adulthood.

Why is it important to study how children grow, learn, and change? An understanding of child development is essential because it allows us to fully appreciate the cognitive, emotional, physical, social, and educational growth that children go through from birth and into early adulthood.

7 Best-Known Developmental Theories

There are many child development theories that have been proposed by theorists and researchers. 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.

Freud's Psychosexual Developmental Theory

Psychoanalytic theory originated with the work of Sigmund Freud. Through his clinical work with patients suffering from mental illness, Freud came to believe that childhood experiences and unconscious desires influenced behavior.

According to Freud, conflicts that occur during each of these stages can have a lifelong influence on personality and behavior. Freud proposed one of the best-known grand theories of child development.

According to Freud's psychosexual theory, child development occurs in a series of stages focused on different pleasure areas of the body. During each stage, the child encounters conflicts that play a significant role in the course of development.

His theory suggested that the energy of the libido was focused on different erogenous zones at specific stages. Failure to progress through a stage can result in fixation at that point in development, which Freud believed could have an influence on adult behavior.

So what happens as children complete each stage? And what might result if a child does poorly during a particular point in development? Successfully completing each stage leads to the development of a healthy adult personality.

Failing to resolve the conflicts of a particular stage can result in fixations that can then have an influence on adult behavior.

While some other child development theories suggest that personality continues to change and grow over the entire lifetime, Freud believed that it was early experiences that played the greatest role in shaping development. According to Freud, personality is largely set in stone by the age of five.

Erikson's Psychosocial Developmental Theory

Psychoanalytic theory was an enormously influential force during the first half of the twentieth century. Those inspired and influenced by Freud went on to expand upon Freud's ideas and develop theories of their own. Of these neo-Freudians, Erik Erikson's ideas have become perhaps the best known.

Erikson's eight-stage theory of psychosocial development describes growth and change throughout life, focusing on social interaction and conflicts that arise during different stages of development.

While Erikson's theory of psychosocial development shared some similarities with Freud's, it is dramatically different in many ways. Rather than focusing on sexual interest as a driving force in development, Erikson believed that social interaction and experience played decisive roles.

His eight-stage theory of human development described this process from infancy through death. During each stage, people are faced with a developmental conflict that impacts later functioning and further growth.

Unlike many other developmental theories, Erik Erikson's psychosocial theory focuses on development across the entire lifespan. At each stage, children and adults face a developmental crisis that serves as a major turning point.

Successfully managing the challenges of each stage leads to the emergence of a lifelong psychological virtue.

Behavioral Child Development Theories

During the first half of the twentieth century, a new school of thought known as behaviorism rose to become a dominant force within psychology. Behaviorists believed that psychology needed to focus only on observable and quantifiable behaviors in order to become a more scientific discipline.

According to the behavioral perspective, all human behavior can be described in terms of environmental influences. Some behaviorists, such as John B. Watson and B.F. Skinner, insisted that learning occurs purely through processes of association and reinforcement.

Behavioral theories of child development focus on how environmental interaction influences behavior and is based on 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.

Two important types of learning that emerged from this approach to development are classical conditioning and operant conditioning. Classical conditioning involves learning by pairing a naturally occurring stimulus with a previously neutral stimulus. Operant conditioning utilizes reinforcement and punishment to modify behaviors.

Piaget's Cognitive Developmental Theory

Cognitive theory is concerned with the development of a person's thought processes. It also looks at how these thought processes influence how we understand and interact with the world.

Theorist Jean Piaget proposed one of the most influential theories of cognitive development.

Piaget proposed an idea that seems obvious now, but helped revolutionize how we think about child development: Children think differently than adults.﻿﻿

His cognitive theory seeks to describe and explain the development of thought processes and mental states. It also looks at how these thought processes influence the way we understand and interact with the world.

Piaget then proposed a theory of cognitive development to account for the steps and sequence of children's intellectual development.

Sensorimotor Stage: A period of time between birth and age two during which an infant's knowledge of the world is limited to his or her sensory perceptions and motor activities. Behaviors are limited to simple motor responses caused by sensory stimuli.

Pre-Operational Stage: A period between ages 2 and 6 during which a child learns to use language. During this stage, children do not yet understand concrete logic, cannot mentally manipulate information, and are unable to take the point of view of other people.

Concrete Operational Stage: A period between ages 7 and 11 during which children gain a better understanding of mental operations. Children begin thinking logically about concrete events but have difficulty understanding abstract or hypothetical concepts.

Formal Operational Stage: A period between age 12 to adulthood when people develop the ability to think about abstract concepts. Skills such as logical thought, deductive reasoning, and systematic planning also emerge during this stage.

Bowlby's Attachment Theory

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.

Bowlby's attachment theory suggested that children are born with an innate need to form attachments. Such attachments aid in survival by ensuring that the child receives care and protection. Not only that but these attachments are characterized by clear behavioral and motivational patterns.

In other words, both children and caregivers engage in behaviors designed to ensure proximity. Children strive to stay close and connected to their caregivers who in turn provide a safe haven and a secure base for exploration.

Researchers have also expanded upon Bowlby's original work and have suggested that a number of different attachment styles exist. Children who receive consistent support and care are more likely to develop a secure attachment style, while those who receive less reliable care may develop an ambivalent, avoidant, or disorganized style.

Bandura's Social Learning Theory

Social learning theory is based on the work of psychologist Albert Bandura. Bandura believed that the conditioning and reinforcement process could not sufficiently explain all of human learning.

For example, how can the conditioning process account for learned behaviors that have not been reinforced through classical conditioning or operant conditioning According to social learning theory, behaviors can also be learned through observation and modeling.

By observing the actions of others, including parents and peers, children develop new skills and acquire new information.

Bandura's child development theory suggests that observation plays a critical role in learning, but this observation does not necessarily need to take the form of watching a live model.﻿﻿

Instead, people can also learn by listening to verbal instructions about how to perform a behavior as well as through observing either real or fictional characters displaying behaviors in books or films.

Vygotsky's Sociocultural Theory

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 developing higher-order functions. In Vygotsky's view, learning is an inherently social process. Through interacting with others, learning becomes integrated into an individual's understanding of the world.

This child development theory also introduced the concept of the zone of proximal development, which is the gap between what a person can do with help and what they can do on their own. It is with the help of more knowledgeable others that people are able to progressively learn and increase their skills and scope of understanding.

A Word From Verywell

As you can see, some of psychology's best-known thinkers have developed theories to help explore and explain different aspects of child development. While not all of these theories are fully accepted today, they all had an important influence on our understanding 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. These theories represent just a few of the different ways of thinking about child development.

In reality, fully understanding how children change and grow over the course of childhood requires looking at many different factors that influence physical and psychological growth. Genes, the environment, and the interactions between these two forces determine how kids grow physically as well as mentally.

Additional Reading

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Influential Theories About How Children Grow and Develop

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There are many development theories. Learn some of the best-known child development theories as offered by Freud, Erickson, Piaget, and other famous psychologists.

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Piaget's Theory of Cognitive Development

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Piaget's Theory of Cognitive Development

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The way this theory fits in with my students is that they would be at the Formal Operations Stage.  Adolescents can now think logically through deductive reasoning and abstract thought.   An example of that would be their ability to analyze literature with "hidden" meanings.

Piaget: Theory of Cognitive Development - YouTube

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Teenagers are at the Identity vs. Confusion stage
When teens receive nurturing support and personal success, their personal identity is strong.  However, teens that do not receive those things are often insecure and don't know who they are.  I see examples of this in my classroom where students are more socially isolated and can't even sit with other students for a group project.  These students are more likely to experience depression and anxiety.

Erik Erikson's Stages of Psychosocial Development (verywellmind.com)

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Understanding Erikson’s Stages of Psychosocial Development

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Erikson’s stages of development describe eight psychosocial phases that shape the development of personality, identity, and psychological skills.

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Formal Operational Stage of Cognitive Development Explained (verywellmind.com)

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Stages of Cognitive Development Guide

The formal operational stage is the fourth and final stage of Jean Piaget's theory of cognitive development. It begins at approximately age 12 and lasts into adulthood.

At this point in development, thinking becomes much more sophisticated and advanced. Kids can think about abstract and theoretical concepts and use logic to come up with creative solutions to problems. Skills such as logical thought, deductive reasoning, and systematic planning also emerge during this stage.

Piaget's Research

Piaget tested formal operational thought in a few different ways. Two of the better-known tests explored physical conceptualization and the abstraction of thought.

Conceptualizing Balance

One task involved having children of different ages balance a scale by hooking weights on each end. To balance the scale, the children needed to understand that both the heaviness of the weights and distance from the center played a role.

Younger children around the ages of 3 and 5 were unable to complete the task because they did not understand the concept of balance. Seven-year-olds knew that they could adjust the scale by placing weights on each end, but failed to understand that where they put the weights was also important. By age 10, the kids considered location as well as weight but had to arrive at the correct answer using trial-and-error.

It wasn't until around age 13 that children could use logic to form a hypothesis about where to place the weights to balance the scale and then complete the task.

Abstraction of Ideas

In another experiment on formal operational thought, Piaget asked children to imagine where they would want to place a third eye if they had one. Younger children said that they would put the imagined third eye in the middle of their forehead. Older children, however, were able to come up with a variety of creative ideas about where to place this hypothetical eye and various ways the eye could be used.

For example, an eye in the middle of one's hand would be useful for looking around corners. An eye at the back of one's head could be helpful for seeing what is happening in the background.

Deductive Logic

Piaget believed that deductive reasoning becomes necessary during the formal operational stage. Deductive logic requires the ability to use a general principle to determine a particular outcome. Science and mathematics often require this type of thinking about hypothetical situations and concepts.

Abstract Thought

While children tend to think very concretely and specifically in earlier stages, the ability to think about abstract concepts emerges during the formal operational stage. Instead of relying solely on previous experiences, children begin to consider possible outcomes and consequences of actions. This type of thinking is important in long-term planning.

Problem-Solving

In earlier stages, children used trial-and-error to solve problems. During the formal operational stage, the ability to systematically solve a problem in a logical and methodical way emerges. Children at the formal operational stage of cognitive development are often able to plan quickly an organized approach to solving a problem.

Hypothetical-Deductive Reasoning

Piaget believed that what he referred to as "hypothetical-deductive reasoning" was essential at this stage of intellectual development. At this point, teens become capable of thinking about abstract and hypothetical ideas. They often ponder "what-if" type situations and questions and can think about multiple solutions or possible outcomes.

While kids in the previous stage ( concrete operations) are very particular in their thoughts, kids in the formal operational stage become increasingly abstract in their thinking.

Current Observations

The following observations were made about the formal operational stage of cognitive development:

From Zana H. Babakr, Pakstan Mohamedamin, and Karwan Kakamad authors of Piaget's Cognitive Developmental Theory: Critical Review : "Although Piaget proposed that all children, without exception, go through the four different types of cognitive development, recent literature demonstrated that not all adolescents approach the formal operational stage. Since in some societies, the educational process does not focus on critical thinking, which is very essential to reach a formal operational stage. Studies showed that only half of the individuals in some societies reach the formal operational stage due to the lack of educational background. Moreover, sometimes individuals can illustrate formal operational skill in just one field, for example, an individual who is a very good an engineer, can think logically about this particular area, but at the same time are very likely to have difficulty thinking logically about poetry."

From Fatima Malik and Raman Marwaha authors of Cognitive Development: "Formal operational stage (12 years and up), suggests an adolescent can use logical operations with the ability to use abstractions. He can understand theories and hypothesize and comprehend abstract ideas like love and justice."

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Formal Operational Stage of Cognitive Development

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Stages of Cognitive Development Guide The formal operational stage is the fourth and final stage of Jean Piaget's theory of cognitive development. It begins at approximately age 12 and lasts into adulthood. At this point in development, thinking becomes much more sophisticated and advanced.

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I don't agree with this theory when it comes to teenagers. The theory states that teens should be at the post-conventional stage where they conform and respect authority. Teens in my classroom are the opposite. They don't respect authority, they do not do what is asked, and they lie to cover up for themselves doing so.
Kohlberg's Theory of Moral Development (verywellmind.com)

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Kohlberg's theory of moral development is a theory that focuses on how children develop morality and moral reasoning. Kohlberg's theory suggests that moral development occurs in a series of six stages and that moral logic is primarily focused on seeking and maintaining justice.

Here we discuss how Kohlberg developed his theory of moral development and the six stages he identified as part of this process. We also share some critiques of Kohlberg's theory, many of which suggest that it may be biased based on the limited demographics of the subjects studied.

What Is Moral Development?

Moral development is the process by which people develop the distinction between right and wrong (morality) and engage in reasoning between the two (moral reasoning).

How do people develop morality? This question has fascinated parents, religious leaders, and philosophers for ages, but moral development has also become a hot-button issue in psychology and education. Do parental or societal influences play a greater role in moral development? Do all kids develop morality in similar ways?

American psychologist Lawrence Kohlberg developed one of the best-known theories exploring some of these basic questions. His work modified and expanded upon Jean Piaget's previous work but was more centered on explaining how children develop moral reasoning.

Kohlberg extended Piaget's theory, proposing that moral development is a continual process that occurs throughout the lifespan. Kohlberg's theory outlines six stages of moral development within three different levels.

How Kohlberg Developed His Theory

Kohlberg based his theory on a series of moral dilemmas presented to his study subjects. Participants were also interviewed to determine the reasoning behind their judgments in each scenario.

One example was "Heinz Steals the Drug." In this scenario, a woman has cancer and her doctors believe only one drug might save her. This drug had been discovered by a local pharmacist and he was able to make it for $200 per dose and sell it for $2,000 per dose. The woman's husband, Heinz, could only raise $1,000 to buy the drug.

He tried to negotiate with the pharmacist for a lower price or to be extended credit to pay for it over time. But the pharmacist refused to sell it for any less or to accept partial payments. Rebuffed, Heinz instead broke into the pharmacy and stole the drug to save his wife. Kohlberg asked, "Should the husband have done that?"

Stages of Moral Development

Kohlberg's theory is broken down into three primary levels. At each level of moral development, there are two stages. Similar to how Piaget believed that not all people reach the highest levels of cognitive development, Kohlberg believed not everyone progresses to the highest stages of moral development.

Preconventional Morality

0 to 9

Stage 1: Obedience and punishment Stage 2: Individualism and exchange

Conventional Morality

Early adolescence to adulthood

Stage 3: Developing good interpersonal relationships Stage 4: Maintaining social order

Postconventional Morality

Some adults; rare

Stage 5: Social contract and individual rights stage 6: Universal principles

Level 1. Preconventional Morality

Preconventional morality is the earliest period of moral development. It lasts until around the age of 9. At this age, children's decisions are primarily shaped by the expectations of adults and the consequences of breaking the rules. There are two stages within this level:

Stage 1 (Obedience and Punishment): The earliest stages of moral development, obedience and punishment are especially common in young children, but adults are also capable of expressing this type of reasoning. According to Kohlberg, people at this stage see rules as fixed and absolute. Obeying the rules is important because it is a way to avoid punishment.

Stage 2 (Individualism and Exchange): At the individualism and exchange stage of moral development, children account for individual points of view and judge actions based on how they serve individual needs. In the Heinz dilemma, children argued that the best course of action was the choice that best served Heinz's needs. Reciprocity is possible at this point in moral development, but only if it serves one's own interests.

Level 2. Conventional Morality

The next period of moral development is marked by the acceptance of social rules regarding what is good and moral. During this time, adolescents and adults internalize the moral standards they have learned from their role models and from society.

This period also focuses on the acceptance of authority and conforming to the norms of the group. There are two stages at this level of morality:

Stage 3 (Developing Good Interpersonal Relationships): Often referred to as the "good boy-good girl" orientation, this stage of the interpersonal relationship of moral development is focused on living up to social expectations and roles. There is an emphasis on conformity, being "nice," and consideration of how choices influence relationships.

Stage 4 (Maintaining Social Order): This stage is focused on ensuring that social order is maintained. At this stage of moral development, people begin to consider society as a whole when making judgments. The focus is on maintaining law and order by following the rules, doing one's duty, and respecting authority.

Level 3. Postconventional Morality

At this level of moral development, people develop an understanding of abstract principles of morality. The two stages at this level are:

Stage 5 (Social Contract and Individual Rights): The ideas of a social contract and individual rights cause people in the next stage to begin to account for the differing values, opinions, and beliefs of other people. Rules of law are important for maintaining a society, but members of the society should agree upon these standards.

Stage 6 (Universal Principles): Kohlberg's final level of moral reasoning is based on universal ethical principles and abstract reasoning. At this stage, people follow these internalized principles of justice, even if they conflict with laws and rules.

Kohlberg believed that only a relatively small percentage of people ever reach the post-conventional stages (around 10 to 15%). One analysis found that while stages one to four could be seen as universal in populations throughout the world, the fifth and sixth stages were extremely rare in all populations.

Applications for Kohlberg's Theory

Understanding Kohlberg's theory of moral development is important in that it can help parents guide their children as they develop their moral character. Parents with younger children might work on rule obeyance, for instance, whereas they might teach older children about social expectations.

Teachers and other educators can also apply Kohlberg's theory in the classroom, providing additional moral guidance. A kindergarten teacher could help enhance moral development by setting clear rules for the classroom, and the consequences for violating them. This helps kids at stage one of moral development.

A teacher in high school might focus more on the development that occurs in stage three (developing good interpersonal relationships) and stage four (maintaining social order). This could be accomplished by having the students take part in setting the rules to be followed in the classroom, giving them a better idea of the reasoning behind these rules.

Criticisms for Kohlberg's Theory of Moral Development

Kohlberg's theory played an important role in the development of moral psychology. While the theory has been highly influential, aspects of the theory have been critiqued for a number of reasons:

Moral reasoning does not equal moral behavior: Kohlberg's theory is concerned with moral thinking, but there is a big difference between knowing what we ought to do versus our actual actions. Moral reasoning, therefore, may not lead to moral behavior.

Overemphasizes justice: Critics have pointed out that Kohlberg's theory of moral development overemphasizes the concept of justice when making moral choices. Factors such as compassion, caring, and other interpersonal feelings may play an important part in moral reasoning.

Cultural bias: Individualist cultures emphasize personal rights, while collectivist cultures stress the importance of society and community. Eastern, collectivist cultures may have different moral outlooks that Kohlberg's theory does not take into account.

Age bias: Most of his subjects were children under the age of 16 who obviously had no experience with marriage. The Heinz dilemma may have been too abstract for these children to understand, and a scenario more applicable to their everyday concerns might have led to different results.

Gender bias: Kohlberg's critics, including Carol Gilligan, have suggested that Kohlberg's theory was gender-biased since all of the subjects in his sample were male. Kohlberg believed that women tended to remain at the third level of moral development because they place a stronger emphasis on things such as social relationships and the welfare of others.

Gilligan instead suggested that Kohlberg's theory overemphasizes concepts such as justice and does not adequately address moral reasoning founded on the principles and ethics of caring and concern for others.

Other Theories of Moral Development

Kohlberg isn't the only psychologist to theorize how we develop morally. There are several other theories of moral development.

Piaget's Theory of Moral Development

Kohlberg's theory is an expansion of Piaget's theory of moral development. Piaget described a three-stage process of moral development:

Stage 1: The child is more concerned with developing and mastering their motor and social skills, with no general concern about morality.

Stage 2: The child develops unconditional respect both for authority figures and the rules in existence.

Stage 3: The child starts to see rules as being arbitrary, also considering an actor's intentions when judging whether an act or behavior is moral or immoral.

Kohlberg expanded on this theory to include more stages in the process. Additionally, Kohlberg believed that the final stage is rarely achieved by individuals whereas Piaget's stages of moral development are common to all.

Moral Foundations Theory

Proposed by Jonathan Haidt, Craig Joseph, and Jesse Graham, the moral foundations theory is based on three morality principles:

1. Intuition develops before strategic reasoning. Put another way, our reaction comes first, which is then followed by rationalization.

2. Morality involves more than harm and fairness. Contained within this second principle are a variety of considerations related to morality. It includes: care vs. harm, liberty vs. oppression, fairness vs. cheating, loyalty vs. betrayal, authority vs. subversion, and sanctity vs. degradation.

3. Morality can both bind groups and blind individuals. When people are part of a group, they will tend to adopt that group's same value systems. They may also sacrifice their own morals for the group's benefit.

While Kohlberg's theory is primarily focused on help vs. harm, moral foundations theory encompasses several more dimensions of morality. However, this theory also fails to explain the "rules" people use when determining what is best for society.

Normative Theories of Moral Behavior

Several other theories exist that attempt to explain the development of morality, specifically in relation to social justice. Some fall into the category of transcendental institutionalist, which involves trying to create "perfect justice." Others are realization-focused, concentrating more on removing injustices.

One theory falling into the second category is social choice theory. Social choice theory is a collection of models that seek to explain how individuals can use their input (their preferences) to impact society as a whole. An example of this is voting, which allows the majority to decide what is "right" and "wrong."

A Word From Verywell

While Kohlberg's theory of moral development has been criticized, the theory played an important role in the emergence of the field of moral psychology. Researchers continue to explore how moral reasoning develops and changes through life as well as the universality of these stages. Understanding these stages offers helpful insights into the ways that both children and adults make moral choices and how moral thinking may influence decisions and behaviors.

Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

1. American Psychological Association. Heinz dilemma.

2. American Psychological Association. Kohlberg's theory of moral development.

3. Kohlberg L, Essays On Moral Development. Harper & Row; 1985.

4. Gibbs J. Moral Development And Reality. 4th ed. Oxford University Press; 2019.

5. Gilligan C. In A Different Voice. Harvard University Press; 2016.

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Levels of Developing Morality in Kohlberg's Theories

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Kohlberg's theory of moral development seeks to explain how children form moral reasoning. According to Kohlberg's theory, moral development occurs in six stages.

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Sociocultural Theory: Understanding Vygotsky's Theory (verywellmind.com)

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Sociocultural Theory: Examples and Applications

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Sociocultural theory explains how social interaction and culture shape learning and cognitive development. Learn how Vygotsky’s theory works.