experimental design and anova.pdf - Lecture 6 Experimental Design and ANOVA Experimental Design Experimental studies vs observational studies

experimental design and anova.pdf - Lecture 6 Experimental...

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Lecture 6 Experimental Design and ANOVA
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Experimental Design Experimental studies vs. observational studies Experimental design: One or more factors are controlled Observational design: Variables are not controlled It is easier to establish causality using experimental design
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Experimental Design Causality: IV DV Control group vs. Treatment group Placebo effect Factor: variable of interest for investigation Treatment: a level of factor Experimental units: objects of interest in an experiment Completely randomized design: treatments are randomly assigned to experimental units
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