Developmental Milestones

  • Birth

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    Piaget: Sesnorimotor stage

    Birth to about 2 years. Experiencing the worls through senses and actions
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    Erik Erikson Stage One: Trust v Mistrust

    In the first stage of psychosocial development, babies learn whether to trust or not based on whether or not their needs for things like food and comfort are met
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    Kohlberg Stage One: Pre-Conventional Morality

    From birth to about 9 years old. In the first stage of moral development, most children's morality focuses on self-interest. They obery rules either to avoid punishment or to gain concrete rewards.
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    Secure Attachment

    Throughout childhood, children experience secure attachment. They feel secure that someone will be able to provide their basic needs for them and the attachemnt figure is often used to soothe them or as a base for safe and comfortable exploration of their environment.
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    Insecure attachment

    A child with insecure attachment style will avoid or ignore their caregiver. They have no security that from someone that their basic needs will be met. The child will not feel comfortable exploring their environment.
  • Raise head to 45 degrees

    2 months
  • Roll over

    2.8 months
  • Sit with support

    4 months
  • Sit without support

    5.5 months
  • Temperament

    A babies temperament can be shown within the first weeks of life,
    Difficult babies: irritable, intense, unpredicatble
    Easy babies: cheerful, relaxed, predicatble in feeding and sleeping
    Slow-to-warm-up babies: resist from new people and situations
  • Pull self to standing position

    7.6 months
  • Walk while holding on to furniture

    9.2 months
  • creep

    10 months
  • Stand alone

    11.5 months
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    Erik Erikson Stage Two: Autonomy v Shame and Doubt

    From 1-3 years. In the second stage of psychosocial development toddlers realize they can direct their own behavior.
  • Walk

    12.1 months
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    Piaget: Preoperational stage

    2 to about 6 years old. Representing thhings with words and images; using intuitive rather than logical reasoning
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    Erik Erikson Stage Three: Initiative v Guilt

    From 3-5 years. In the third stage of psychosocial development children are developing imagination and sharing. They have to learn to control their behavior and take responsibility.
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    Erik Erikson stage four: Industry v Inferiority

    From 5-12 years. In the fourth stage of psychosocial development children try to learn new skills and obtain new knowledge.
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    Piaget: Concrete Operational

    7 to 11 years: Thinking logically about concrete events
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    Kohlberg Stage Two: Conventional Morality

    From adolescense through adulthood. The second stage of moral development focuses on caring for others and on upholding laws and social rules, simply because they are the laws and rules.
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    Piaget: Formal Operational Stage

    From 12 years through adulthood. In the final stage, people learn abstract reasoning and have the potential for mature moral reasoning and abstract logic.
  • Puberty

    Girls will experience their first menarche and boys will experience their first spermarche around age 13. Boys begin to develop facial hair, different voice quality, and other secondary sex characteristics. Girls begin to develop breasts, hips, and other secondary sex characteristics.
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    Erik Erikson stage five: Identity v Role Confsuion

    From 13-18 years (adolescence). During the fifth stage of psychosocial development, adolescents are trying to find who they are.
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    Erik Erikson stage six: Intimacy v Isolation

    From early 20s to 40s (young adult). In the sixth stage of psychosocial development, young adults are trying to form a close, committed relationship.
  • First child

    On average, women in the US have their first child at 25 years old.
  • Marriage: women

    On average, women in the US get married around 27 years old.
  • Marriage: men

    On average, men in the US get married around 30 years old.
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    Decline in sensory abilities

    Our sensory abilities, such as hearing, seeing, smelling, muscle strength, reaction time, and stamina actually begin decreasing around the age of 30, a lot earlier than most people think. As we continue through life, our senses continue to decrease significantly.
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    Physical changes begin

    In middle adulthood, our physically ability begins to change. Older people are more susceptible to short-term illnesses, women experience menopause, men experience a decrease in testosterone. Our muscular strength and reaction time also decline
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    Cognitive changes in adulthood

    Fliud Intelligence increases with age and Crystallized intelligence decreases with age.
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    Erik Erikson stage seven: Generativity v Stagnation

    From 40s to 60s (middle adulthood). In the seventh stage of psychosocial development, the challenge is to be creative, productive, and give back to the next generation.
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    Kohlberg Stage Three: Postconventional Morality

    From early/middle adulthood through old age. The final stage of moral development focuses on abstract reasoning. Actions and decisions are made based on personal moral and ethical beliefs.
  • Midlife Transition

    The average age of midlife transition is 45 years old. This is a point in adulthood when people become bored with their lifestyle or feel unfulfilled with that they have done in their lifetime.
  • Menopause

    The average age of menopause is 51 years old. Menopause is the end of a woman's reproductive ability.
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    Erik Erikson stage eight: Ego Integrity v Despair

    From 60s and up (late adulthood). In the eighth and final stage of psychosocial development, the person is trying to reach tranquility, wisdom, wholeness, and acceptance.
  • Death