- Students’ fundamental motor skills are already developing when they begin kindergarten (age of five) but not perfectly.
- Even if physical skills are not a special focus of a classroom teacher, it's important to students themselves.

* For example, 
- students who are clumsy are aware of the fact that it could potentially
negatively effect respect from their peers.
- self-consciousness and poor self-esteem can develop for a child who is clumsy for long-term effect

Development of Motor Skills

Which of the following life events would NOT be considered a developmental milestone?

While some developmental sequences are considered universal, others are significantly shaped by cultural context. Stage theories, for example, suggest a universal progression for milestones like language acquisition, where children across all cultures follow a similar sequence from cooing to babbling to their first words. In contrast, other milestones, particularly in motor development, are influenced by cultural child care practices, which can accelerate or inhibit skills such as sitting, crawling, and walking. This demonstrates that while some milestones are universal, development can also follow many courses depending on cultural factors.

Universal vs. Culturally Specific Developmental Milestones

The age at which children begin formal schooling is a prime example of a social milestone that varies significantly across cultures. While a common age in some countries is around five or six, this is not a global standard. Cultural practices, economic conditions, and educational access create wide variations, with UNESCO data indicating that millions of children worldwide do not attend school at all.

Cultural Variation in the Social Milestone of Starting School

An example illustrating the application of the normative approach involves the developmental milestone of walking. The average age for a child to begin walking is 12 months. However, individual timelines can vary significantly, which may cause concern for parents. For instance, one child might start walking at 10 months, while another may not be walking at 14 months. This variation highlights that normative data provides general guidelines for development, and slight deviations from the average are common and not necessarily indicative of a problem.

Individual Variation in Reaching Developmental Milestones: The Case of Walking

The Centers for Disease Control and Prevention (CDC) is a key organization that provides detailed information on developmental milestones for children, specifically outlining benchmarks for ages ranging from 2 months to 5 years old.

Centers for Disease Control and Prevention (CDC) as a Resource for Developmental Milestones

Sitting unassisted is a key developmental milestone that requires both coordination and muscle strength. On average, babies achieve this skill at 7 months old, with 90% of infants learning to sit alone between the ages of 5 and 9 months.

Sitting as a Developmental Milestone

The ability for a baby to hold their head up is an early developmental milestone. The average age for achieving this is 6 weeks, and 90% of babies accomplish it between 3 weeks and 4 months of age. A failure to hold the head up by 4 months is considered a developmental delay.

Holding Head Up as a Developmental Milestone

A developmental delay is indicated when a child does not achieve a milestone within the expected age range, such as a baby not holding their head up by 4 months. The presence of delays across several milestones is a significant reason for concern. In such situations, it is recommended that the parent or caregiver consult with the child’s pediatrician to discuss these concerns.

Developmental Delays and Seeking Professional Advice

Cognitive milestones are key benchmarks in a child's development that track the acquisition of new abilities related to thinking, problem-solving, and communication. Similar to physical milestones, they provide a framework for understanding a child's mental growth.

Cognitive Milestones

Developmental milestones are key skills and abilities that children are expected to achieve by a certain age. For each milestone, there is an average age of achievement and a broader range of ages within which most children will reach it. These benchmarks, which include motor skills like sitting and holding one's head up, serve as guidelines for tracking a child's development against normative data.

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The normative approach in developmental psychology seeks to understand and define "normal" development by establishing norms, or average ages, for achieving specific developmental milestones. Originating in the early 20th century, this method involves studying large groups of children across various ages to determine these benchmarks. These norms are applied across the three developmental domains (physical, cognitive, and psychosocial) and are used by psychologists as general guidelines to identify when a child might need additional support. However, there is a contemporary awareness that the term "normal" should be used with consideration, with some practitioners preferring alternative terminology.

Normative Approach to Development

Motor skills are abilities that enable individuals to move their bodies and manipulate objects. These skills are generally classified into two main categories: fine motor skills, which involve small, precise movements, and gross motor skills, which involve larger movements using major muscle groups.

Motor Skills

To study the human lifespan, developmental psychologists often segment it into distinct, age-based periods. This approach, which is similar to the structure of theories like Erikson's, allows for a focused examination of development. The primary stages include prenatal development, infancy, childhood, adolescence, and adulthood.

Age-Based Stages of Lifespan Development

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Developmental Milestones

A pediatrician consults a developmental chart which indicates that, on average, infants begin to walk at 12 months, but the typical range is between 9 and 16 months. The pediatrician uses this information to reassure parents of a 14-month-old who is not yet walking. Based on this scenario, what is the primary limitation of using this method to assess an individual child's development?

The process of learning to surf, as seen with a boy named Julian, illustrates how complex motor skills are acquired through practice rather than instinct. Julian's initial attempt to ride a wave results in him losing his balance, while his more experienced father successfully rides one. This highlights that surfing is a learned behavior, requiring the development of balance, coordination, and technique over time through experience and observation.

Learning to Surf: An Example of Acquiring Complex Motor Skills

Childhood play often involves the use of motor skills in different environments. For instance, children might engage in activities like playing in the shallow water of a beach, using flotation devices, or playing on the sand. Winter play provides other examples, such as children catching snowflakes on their tongues, which requires motor coordination.

Examples of Childhood Play Involving Motor Skills

Fine motor skills are the abilities required to coordinate small muscle groups, such as those in the fingers, toes, and eyes. These skills facilitate precise actions like grasping a toy, writing with a pencil, or using a spoon.

Fine Motor Skills

Gross motor skills involve the use of large muscle groups that control the arms and legs. These skills are fundamental for performing larger movements such as balancing, running, and jumping.

Gross Motor Skills

A child is focused on building a tall tower using small, interlocking blocks. To add a new block to the top, the child must carefully use their thumb and forefinger to grasp the block, orient it correctly, and press it firmly into place without toppling the structure. Which statement best distinguishes the primary physical ability required for placing the block from other abilities the child is using?

Adolescence is the developmental stage that begins with puberty and concludes at the start of emerging adulthood, typically spanning the ages of 12 to 18. This period serves as an extended transition between childhood and adulthood and is characterized by predictable milestones across three domains: physical, cognitive, and psychosocial development.

Adolescence

Adulthood, which begins around age 20, is a major life stage characterized by significant developments across physical, cognitive, and emotional domains. This period is typically divided into three substages: early, middle, and late adulthood.

Adulthood

Psychological topics to consider from infancy to childhood include:

- Physical development
- Cognitive development 
- Attachment 
- Self-concept

Infancy to Childhood in Psychology

Emerging adulthood is a recently identified stage of lifespan development that bridges adolescence and full adulthood. Typically occurring from age 18 to the mid-20s, this period is considered a transitional phase where the primary focus is on exploring one's identity, particularly in the contexts of work and love. This stage is especially prominent in Western cultures, where the attainment of traditional adult milestones is often delayed.

Emerging Adulthood

Prenatal development encompasses the orderly and delicate sequence of growth from a single-cell structure to birth. This crucial period of human development is typically divided into three main stages: germinal, embryonic, and fetal.

Prenatal Development

- Basic Trust Versus Mistrust
- Autonomy Versus Shame and Doubt
- Initiative Versus Guilt
- Industry Versus Inferiority
- Identity Versus Role Confusion
- Intimacy Versus Isolation
- Generatively Versus Stagnation
- Integrity Versus Despair

Stages in Erikson's Theory of Psychosocial Development

The concept of adolescence is a social construct, meaning it is not a universal stage of life across all societies and time periods. In pre-industrial societies, for example, individuals were typically considered adults upon reaching physical maturity. The modern idea of adolescence as an extended period between childhood and adulthood is a more recent development.

Adolescence as a Social Construct

A research team is designing a study to understand how problem-solving abilities change throughout a person's life. They decide to structure their research by observing and comparing separate groups of people from distinct age categories: childhood, adolescence, and adulthood. Critically evaluate this methodological choice. What are the main benefits of organizing the study around these discrete age-based periods, and what are the significant drawbacks or potential inaccuracies that might arise from this approach?

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