Temperament
Early differences in reactivity and regulation shape how children engage with experience.
Definition
Temperament refers to early-emerging, biologically grounded differences in emotional, attentional, and behavioral reactivity and self-regulation.
How to understand it
Children may differ in how strongly they respond to novelty, how active they are, or how readily they settle after stimulation. These tendencies interact with experience. They provide a foundation for personality but do not contain all of a person’s values, self-understanding, goals, or later patterns of behavior.
The idea of goodness of fit asks how a child’s tendencies and the surrounding demands work together. It redirects explanation away from judging a child as inherently easy or difficult. In a teaching discussion, describe the response and setting precisely, then ask which environmental expectations may be creating difficulty. The same tendency may function differently in another context.
Evidence: (Spielman et al., 2020); (Noba: Social and Personality Development in Childhood, n.d.)
Two fictional introductions to a club
Teaching scenario
One child immediately joins a noisy group activity; another first watches from beside a familiar adult. The club leader offers a quieter observation period and a gradual invitation to participate. Students discuss the fit between the setting and each child’s response. They avoid predicting lifelong personality from the scene or describing one approach as evidence of better character or superior parenting.
Constructed for learning. This scenario is not a report of an empirical finding or a diagnosis.
Common confusion: Personality
Temperament emphasizes early reactivity and regulation; personality includes a broader developing organization of traits, goals, values, and self-understanding.
Compare temperament and personality traits
Evidence: (Spielman et al., 2020); (Noba: Social and Personality Development in Childhood, n.d.)
Limits of the concept
- A biological basis does not make a tendency unaffected by experience.
- A single observation cannot establish a stable temperament, and evaluative labels can obscure context.
Evidence: (Spielman et al., 2020); (Noba: Social and Personality Development in Childhood, n.d.)
Textbook connection
Direct coveragePsychology 2e: 9.3 Stages of Development
Direct temperament coverage; Noba supplies a more precise reactivity/regulation and environmental-fit account.
Supplementary concepts may extend beyond this section. The source notes below identify the evidence for those details.
Related concepts
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Sources and inspection notes
Checked October 21, 2026. An inspection date is not a source publication date. Definitions and scenarios on this page are original teaching explanations.
- Noba: Social and personality development in childhood. (n.d.). https://nobaproject.com/modules/social-and-personality-development-in-childhoodEarly reactivity, regulation, environmental fit, and distinction between temperament and personality.
Opened and inspected on 21 October 2026. Academic teaching synthesis; not a primary experiment.
- Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020). Psychology 2e. OpenStax. https://openstax.org/books/psychology-2e/pages/9-3-stages-of-developmentCourse textbook section
Opened actual subsection on 21 October 2026; title and URL verified. Course textbook, not independent primary evidence.