From observation we can make generalizations about human nature and behavior.
Methods of Observation Surveys Target population Samples Random samples Stratified samples Accuracy?? Generalizing Results Volunteer Bias
Naturalistic Observation Laboratory Testing Types Case-Study In-depth (individuals or groups) Generalization, Replication, Recollection Longitudinal Change/develop over time (expense, risk?) Cross-sectional (reliability?) Naturalistic Observation Field Study Laboratory Control the environment
Correlation Correlation is the measure of how one thing is related to another. Positive Correlation – one goes up, so does the other Negative Correlation – one goes up, the other goes down CORRELATION does not necessarily mean CAUSATION.
The Experimental Method Experiments – Used by researchers to answer questions about cause and effect. Variables - Independent Variable Dependent Variable Groups Experimental Group Control Group Placebo Effect Studies Single-Blind Double-Blind