PS 210 Unit 1 developmental domains overview example

Ages Four to Five in Three Strands: A Developmental Domains Overview of Physical, Cognitive and Socioemotional Change in the Year Before Kindergarten, Each Claim Carried to a Source

Student Name

Psychology, Herzing University

PS 210: Psychology of Child and Adolescence

Instructor Name

January 13, 2026

Ages Four to Five in Three Strands: A Developmental Domains Overview of Physical, Cognitive and Socioemotional Change in the Year Before Kindergarten, Each Claim Carried to a Source

The Age Band and Why It Is Narrow

This overview describes development between a child's fourth and fifth birthdays, the year before most American children start kindergarten. A narrow band is chosen deliberately. Across childhood, development is fast enough that statements true of a three-year-old can be false of a five-year-old, and an overview of all of early childhood tends to blur those differences. Within the band, change is reported in three strands, physical, cognitive and socioemotional, each kept separate so a reader can see what moves in each, while a final section notes where the strands meet.

One caution applies throughout. Children vary widely, and the ages attached to milestones describe what most children do by a given age, not what every child should do. Zubler et al. (2022), the team behind the federal government's revised developmental milestone checklists, explain that the revised checklists list skills that at least three quarters of children show by the stated age, so that a missing milestone is a reason to look more closely rather than a sign of a problem.

The Physical Strand

Between four and five, gross motor skills become more coordinated and fine motor skills more controlled. Typical four-year-olds can catch a large ball most of the time, and by five many can hop on one foot and keep their balance in games that demand it. In fine motor terms, children in this year begin to hold a pencil or crayon with fingers rather than a fist, copy simple shapes and, by around five, write some letters. Zubler et al. (2022) list skills such as catching a large ball and drawing a person with three or more body parts among the four-year milestones, and at five years skills such as hopping on one foot and writing some letters.

Physical growth continues more slowly than in infancy. The more important change for daily life is control: children can now use their bodies with enough precision to dress themselves with some help, use scissors and take part in structured games.

The Cognitive Strand

Understanding other minds

The best-documented cognitive change in this band concerns how children understand beliefs. In false-belief tasks, a child watches a character put an object somewhere and leave, sees the object moved, and is asked where the character will look for it. Wellman et al. (2001) combined results from many such studies in a meta-analysis and found a consistent developmental pattern: most three-year-olds answer as though the character knows where the object really is, while most children answer correctly by around four and a half to five. The pattern held across countries and versions of the task.

Executive function

A second line of change involves executive functions, the abilities to hold information in mind, resist an impulse and switch flexibly between rules. Diamond (2013) describes these as developing gradually through childhood, with marked improvement in the preschool years, and as closely linked to readiness for school. A four-year-old who can wait for a turn or follow a two-step instruction without reminders is using these capacities.

The Socioemotional Strand

Socially, children in this band move toward cooperative play with shared goals and roles, and friendships become more stable and preferential. Emotionally, they put names to feelings more often and try simple ways of coping, such as seeking an adult or switching to a different game, though large emotions still frequently overwhelm those strategies. Zubler et al. (2022) list skills at four such as comforting others who are hurt or sad and changing behavior based on location, for example acting differently in a library than on a playground, and at five skills such as following rules or taking turns in games.

The growth in understanding others' beliefs supports these social changes. A child who understands that a friend may not know what she knows can explain, negotiate and, sometimes, deceive in play, all of which show up in this year.

How the Evidence Was Gathered

The three strands rest on different kinds of evidence, and the differences matter. The milestone ages come from a review that combined published normative data with the judgment of an expert working group, which is suited to describing what most children do but not to explaining why (Zubler et al., 2022). The false-belief pattern comes from a meta-analysis of experiments in which children answered standardized questions, which gives a precise age trend for one kind of reasoning but tests it in an artificial setting (Wellman et al., 2001). The account of executive function draws on a review spanning laboratory tasks, classroom studies and intervention research (Diamond, 2013). None of these sources follows a single group of children through every strand at once, so the links between strands described below are reasonable connections drawn across studies rather than findings from one study. An overview should say that plainly instead of implying a single, unified body of evidence.

Where the Strands Meet

The strands are separated for analysis, but they are not separate in a child. Fine motor control supports drawing and writing, which support communicating ideas. Executive functions support both waiting a turn in a game and following classroom instructions, so they sit between the cognitive and socioemotional strands. Understanding others' beliefs changes how a child plays, argues and comforts. A good overview keeps the strands apart so each can be described precisely and then shows how they depend on one another.

What This Overview Does Not Do

It does not offer a checklist for judging any child. The milestone research describes what most children do, and variation is normal. It also does not describe development before four or after five, where different statements would be needed, and it uses no real child as an example. Parents or teachers with questions about a particular child are best served by the child's health care provider. The overview is also limited to typical development in the sources consulted, which drew mainly on children in the United States and similar countries; expectations for some skills, such as using scissors, depend partly on what a culture gives children to practice.

References

Diamond, A. (2013). Executive functions. Annual Review of Psychology, 64, 135-168. https://doi.org/10.1146/annurev-psych-113011-143750

Wellman, H. M., Cross, D., & Watson, J. (2001). Meta-analysis of theory-of-mind development: The truth about false belief. Child Development, 72(3), 655-684. https://doi.org/10.1111/1467-8624.00304

Zubler, J. M., Wiggins, L. D., Macias, M. M., Whitaker, T. M., Shaw, J. S., Squires, J. K., Pajek, J. A., Wolf, R. B., Slaughter, K. S., Broughton, A. S., Gerndt, K. L., Mlodoch, B. J., & Lipkin, P. H. (2022). Evidence-informed milestones for developmental surveillance tools. Pediatrics, 149(3), Article e2021052138. https://doi.org/10.1542/peds.2021-052138