PSYC 2020 Lecture Notes - Lecture 24: Field Experiment, Natural Environment
PSYC 2020 Lecture 24 Notes
Introduction
Natural environment
• Experiments may be performed in the laboratory or in the natural environment (that is,
a field eperiet), there ireasig the eologial validit of the results.”
• The impact of events that researchers cannot manipulate or control can be studied in
natural (quasi-) experiments.
• However, lack of control over natural events prevents the quasi-experimenter from
drawing definitive conclusions about cause and effect. "
• Cross-cultural studies!
• Compare participants from different cultures and subcultures on one or more aspects of
development!
• Identify universal patterns of development!
• Demonstrate that other aspects of development are heavily influenced by the social
context in which they occur
• Desigs for Studig Developet”
• The cross-sectional design!
• Compares different age groups at a single point in time! Is easy to conduct!
• Cannot tell us how individuals develop!
• May confuse age trends for trends that may actually be due to cohort effects rather
tha true developetal hage”
• The longitudinal design!
• Detects developmental change by repeatedly examining the same participants as they
grow older!
• Identifies developmental continuities and changes and individual differences in
development!
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