L1 Intro to dev psych

• What is quantitative change?

  Changes in amount or intensity, but not in kind. Gradual change, more of the same.
• What is qualitative change?

  Abrupt, something different e.g. walking vs running
• What is U-shaped change?

  Getting worse before getting better. May be a subset of qualitative change? E.g. overregularization of verbs with ed endings.
• What is atypical development?

  When there is a delay or divergence in development e.g. with down syndrome