Statistical Characteristics
Developmental
Psychology
Statistical Characteristics
- Longitudinal
- Subjects can be compromised
- Death, illness, etc.
- Cross Sectional
- There are more variables with the different age groups
- Cross Sectional
- Environment stays constant
- Variable subjects develop
- The changes recorded are seen on all levels
- Longitudinal
- Observation study of a group of subjects over a long time
- Cross Sectional
- Observation of a variety of aged subjects for a short time period
Developmental
Psychology
Longitudinal and Cross Sectional Studies
- Longitudinal
- We see development of the same individuals
- Environment changes around them
- Changes are seen gradually in some
- Less in others
- Age
- Statistics
- Research
- Developmental Psychology
Case Study
- Observe subjects and family situations over multiple years
- Variables
- Sampling Bias
- Experimenter bias
Research Methodology
- Longitudinal
- Viewed changes of the same subjects with the same variables
- Cross Sectional
- Viewed changes of variable subjects in the same time
Longitudinal and Cross Section