PSYC 2300 Lecture Notes - Lecture 4: Naturalistic Observation, Content Analysis, Dependent And Independent Variables
Document Summary
Quantitative research: variables are measured, numerical values. Non-experimental research: naturalistic observation, ethnography, case study, archival. Experimental research: manipulative, 2 types experimental. Correlational research: no independent variables are manipulated, 2+ variables are measured and relationship is determined changes in one change another. Correlation does not prove causation: correlational relationships can be used for predictive purposes. What is an experiment: systematic, researcher manipulates a variable, holds other variables constant, study investigation effects of x and y. External validity: degree to which results generalize beyond your sample and research setting, 3 types. From one study to the real world: factors affecting. Internal validity: degree to which your design tests what it was intended to, variation in dependent variable is cause only by variation in the independent variable, changes in criterion variable are solely related to changes in predictor variable. Extraneous variables: influence dependent variable, confound.
