© Richard Goldman October 2, 2006

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© Richard Goldman October 2, 2006 Module 3 Research in Psychology Chapter 1, Pages 27-40 Essentials of Understanding Psychology- Sixth Edition PSY110 Psychology © Richard Goldman October 2, 2006

Scientific Method Identify Question Form Explanation (hypothesis) Test Hypothesis Operational Hypothesis Research Method Collect Date / Conduct Test Analyze Data Repeat / Verify

Some Other Types of Research Archival Research - Examine existing records Naturalistic Observation – Observe without intervention Survey – Often use a sample population Case Study – Testimonials

Correlation Correlation is NOT causation Range: +1 to -1 + correlation coefficient – as one variable increase so does the other - correlation coefficient – as one variable increase the other decreases

Experimental Manipulation Make changes to the independent variable in the experimental group Observe changes in the dependent variable Use control group with no changes or use placebo

Significant Outcome? Trivial difference in results What caused the difference Group (sample) size Placebo effect Bias Quality Control