PSYC 355 Lecture Notes - Lecture 4: Informed Consent, External Validity, Internal Validity

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PSYC 355: Developmental Psychology
Naturalistic Observation (“In the Wild”
Observe children in different environments
Used when the primary goal of research is to describe how children behave in their usual
environments
Structured Observation
Present identical situations to a number of children and record their behavior
Enables direct comparisons
Contexts for Gathering Data
Combinations
Because every method has limitations, researchers often use a combination of techniques
Or add additional measures
Converging methods is important
Physiological & Neuroscience
Study the physiological bases of behavior
Physiological responses
Heart-rate
Skin Conductance
Stress hormone levels
Brain activity
EEG/ERPs electrical activity of the brain
fMRI amount of oxygen in the brain
fNIRS amount of oxygen in blood (not going to get info)
Brain structure
MRI
Event-Related Potentials (ERPs)
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