PSY 3171 Chapter Notes - Chapter 4: Randomized Controlled Trial, Blind Experiment, Internal Validity
1 Oct 2016
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Abnormal psychology textbook notes - chapter 4: research methods. Hypothesis > educated guess about what you expect to find. Testability > ability to test the hypothesis. Research design > how you want to test hypothesis. People you are studying > dependent variable. Influences on their behaviours > independent variable. Internal and external validity specific to research studies. Internal validity > extent to which we can be confident that independent vari- able is causing dependent variable to change. External validity > how well results relate to things outside of study; how well findings describe similar individuals outside laboratory. Confound > any factor occurring in a study that makes results uninterpretable be- cause a variable other than the independent variable may also effect the dependent variable. In a control group, people are similar to experimental group in every way expect that those in control group are not exposed to the independent variable; those in experi- mental group are.
