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Psychological Development Across the Lifespan

Infancy

How stable is temperament over time?

Several studies have shown only low to moderate stability of temperament over time. This means that children may change in terms of how they respond to stimulation and how well they can self-soothe or exhibit some form of self-control. Temperament is least stable in the first two years of life. After the age of two, however, temperament is more stable.