Ageing

• Main forms of stability and change
  • Strong rank-order stability
  • Substantial mean-level changes
• Two main methods
  • Simialrities and differences in findings
  • Practice effects
  • Do different abilities age differently?
  • Could it still be g that changes?
  • What is the underlying process that ages (e.g., processing speed theories)?
  • Is it normal ageing all across the distribution?
  • Genetic and environmental effects
    • Predictors of change (can we spare the cognition)?