1) There are two ways to measure development, what are they? Briefly describe them.
Cross sectional and longitudal designs
2) What are the disadvantages of Longitudal and Cross Sectional designs?
Attrition for longitude and for cross sectional its cohort.
3) What is development psychology?
The Psychology of change and stability of human physical cognitive, social, and behavioural characteristics
across the life span.
4) What are attrition and the cohort effect?
Attrition-occurs when parti