Lecture 082707

Lecture 082707 - 08/27/07 Research 1. Clinical researchers...

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Unformatted text preview: 08/27/07 Research 1. Clinical researchers face certain challenges that make their investigations particularly difficult: a. Measuring unconscious motives b. Assessing private thoughts c. Monitoring mood changes 2. Clinical researchers must consider the cultural backgrounds, races, and genders of those they study 3. Clinical researchers must follow the code of ethics to ensure that their subjects are not harmed What Do Clinical Researchers Do? 4. Clinical researchers try to discover laws and principles of abnormal psychological functioning: a. Generally do not assess, diagnose, or treat individual clients b. Search for nomothetic ( principles that apply to everything) understanding c. General or universal laws (dont help you predict what will happen to an ind. ) d. Use the scientific method to pinpoint relationships among variables e. Use three methods of investigation The Case Study 5. Provides a detailed description of a persons life & psychological problems a. Is helpful because it can serve as a source of new ideas about behavior ( cannot draw broad conclusions) i. Freuds theories based entirely on case studies b. May offer tentative support for a theory c. May challenge a theorys assumptions d. May inspire new therapeutic techniques e. May offer opportunities to study unusual problems The Case Study has limitations: 6. Observers are biased 7. Relies on subjective evidence i. Is low on internal validity-Validity that lets you make with some confidence a statement about causality ( how things are caused) 8. Provides little basis for generalization i. Is low on external validity 9. These limitations are addressed by the two other methods of investigation The Correlational Method & the Experimental Method 10. Do not offer richness of detail 11. Allow researchers to draw broad conclusions a. Typically involve observing many individuals b. Researchers apply procedures uniformly i. Studies can be replicated c. Researchers use statistical tests to analyze results The Correlational Method 12. Correlation is the degree to which events or characteristics vary from each other a. Measures the strength of a relationship b. Does not imply cause and effect-things go together but may not be the cause 13. The people chosen for a study are its subjects or participants, collectively called a sample a. The sample must be representative The Correlational Method-how it works 14. Correlational data can be graphed and a line of best fit can be drawn a. Positive correlation b. Positive correlation = variables change in the same direction (ex: found in slides) c. Correlational data can be graphed and a line of best fit can be drawn...
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This note was uploaded on 04/28/2008 for the course PSYC 240 taught by Professor Heilbron during the Spring '08 term at UNC.

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Lecture 082707 - 08/27/07 Research 1. Clinical researchers...

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