PSYB04H3 Chapter Notes - Chapter 9: Longitudinal Study, Developmental Psychology, Regression Analysis
Document Summary
Longitudinal design: an observational research method which the data collected, concerns the same subjects repeatedly over a period of time. This design can provide evidence for temporal precedence by measuring the same variables in the same people at several points in time. Often, longitudinal research is used in developmental psychology to study changes in a trait or an ability as a person grows older. In addition, this type of design is adapted to test causal claims. Longitudinal studies and the three criteria for causation. Longitudinal designs can provide some evidence for a causal relationship by means of the three criteria for causation: covariance; significant relationships in longitudinal designs help establish covariance. When two variables are significantly correlated there is covariance: temporal precedence; longitudinal design can help researchers make inferences about temporal precedence. Because each variable is measured in at least two different points in time, they know which one came first.
