Temperament Types
Defining Temperament and Its Characteristics
Temperament refers to individual differences in reactivity and self-regulation that are biologically based and relatively stable across situations and over time. Think of it as a child's behavioral style: the characteristic way they approach and react to the world around them.
Temperament matters because it shapes how children interact with their environment and how other people respond to them. A child who reacts intensely to frustration will get different responses from caregivers than one who stays calm, and those responses in turn shape the child's development.
Three Main Temperament Types
These categories come from the classic work of Thomas and Chess, based on the New York Longitudinal Study. About 35% of children don't fit neatly into any single type, so treat these as general patterns rather than rigid labels.
- Easy temperament (about 40% of children): Generally positive mood, adaptable, and mild in their reactions. These infants quickly establish regular routines for sleeping and eating, and they adjust to new experiences without much fuss.
- Difficult temperament (about 10%): Often negative in mood, slow to adapt, and intense in their reactions. These infants tend to have irregular routines, are very active and fussy, cry frequently, and are harder to soothe.
- Slow-to-warm-up temperament (about 15%): Low activity level, mild and low-key reactions, and a tendency toward negative mood in new situations. These children do react negatively to unfamiliar experiences, but with less intensity than difficult-temperament children. Given time and gentle exposure, they gradually adjust.
Implications and Considerations
Most children show a blend of characteristics across types. These categories describe behavioral tendencies, not permanent traits carved in stone. Recognizing a child's temperamental style helps caregivers anticipate reactions and respond in ways that support the child's development rather than working against their natural tendencies.
Personality Traits
Key Personality Traits in Early Childhood
While temperament describes broad behavioral style, personality traits capture more specific patterns that emerge early and remain moderately stable over time.
- Extraversion: The tendency to be sociable, assertive, and experience positive emotions. Extraverted children are outgoing and talkative, and they actively seek out social interaction.
- Neuroticism: The tendency to experience negative emotions such as anxiety, fear, and sadness. Children high in neuroticism may worry more, startle more easily, and have greater difficulty bouncing back from emotional upset.
- Behavioral inhibition: The tendency to be shy, timid, and withdrawn in unfamiliar situations. An inhibited toddler might cling to a caregiver at a new playground and watch other children for a long time before joining in. These children are more cautious and less exploratory overall.
- Effortful control: The ability to voluntarily regulate attention, emotions, and behavior. A toddler with high effortful control can wait briefly for a snack without melting down, shift attention when redirected, and manage impulses better than peers with lower effortful control.
Personality Traits and Child Development
These traits influence how children approach their environment and the developmental paths they follow. Extraversion and effortful control are generally linked to positive outcomes like social competence and, later, academic success. High neuroticism and behavioral inhibition, on the other hand, may increase risk for anxiety and other internalizing problems.
That said, context matters. Behavioral inhibition isn't inherently "bad." In some situations, caution is adaptive. The concern arises when inhibition is extreme and persistent enough to limit a child's ability to explore, learn, and form relationships.
Assessing Personality in Early Childhood
Since infants and toddlers can't fill out questionnaires, researchers rely on other methods:
- Parent/caregiver reports: Caregivers rate their child's typical behaviors. The Children's Behavior Questionnaire (CBQ) is one of the most widely used parent-report measures of temperament and personality in early childhood.
- Observational measures: Trained observers watch children in natural or structured settings, coding specific behaviors like sociability, shyness, or emotion regulation.
- Laboratory measures: Children are placed in controlled situations designed to elicit particular responses (for example, presenting an unfamiliar toy to assess behavioral inhibition).
Influences on Temperament and Personality
Genetic Influences
Twin and adoption studies consistently show that temperament and personality have a moderate genetic component. Heritability estimates typically range from 20-60%, which means genes play a real role but don't tell the whole story.
Researchers have identified specific genes associated with certain traits. For example, variations in the serotonin transporter gene have been linked to neuroticism, and dopamine receptor genes have been associated with extraversion. But no single gene determines a personality trait. These are small contributions from many genes interacting with each other and with the environment.
Environmental Influences
Genes set a range of possibilities; environment shapes which possibilities get expressed.
- Parenting practices: Sensitive, responsive caregiving helps children learn to regulate their emotions and behavior. A caregiver who notices a toddler's frustration and calmly helps them problem-solve is teaching emotional regulation in real time.
- Stressful life events: Poverty, family conflict, and other chronic stressors can negatively affect temperament expression and increase risk for emotional and behavioral difficulties.
- Cultural factors: Different cultures value different temperamental styles. In some cultures, a quiet, reserved child is seen as well-behaved; in others, that same child might be viewed as too passive. These cultural values shape how caregivers respond to temperament, which in turn shapes the child's development.
Goodness of Fit
Goodness of fit is the match between a child's temperament and the demands and expectations of their environment. This concept, also from Thomas and Chess, is one of the most practical ideas in this unit.
A good fit occurs when caregivers' expectations and style align with the child's temperament. For example, an easygoing child tends to thrive in a relaxed, flexible family environment.
A poor fit occurs when there's a mismatch. A shy, inhibited child placed in a high-pressure, socially demanding environment may become overwhelmed and anxious rather than gradually building confidence.
The good news is that fit can be improved. Caregivers don't need to change a child's temperament. Instead, they can adjust their own expectations and parenting strategies. For a slow-to-warm-up child, that might mean allowing extra transition time before new activities rather than pushing the child to jump right in. For a difficult-temperament child, it might mean maintaining consistent routines and staying calm during intense reactions rather than escalating alongside the child.
Goodness of fit is ultimately about working with a child's temperament rather than against it, and it's one of the strongest predictors of positive socioemotional outcomes in early childhood.