Psy 101(3) - Cofound factor that systematically biases the research e.g Selection Bias spurious relationships that occur due to people self

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Cofound : factor that systematically biases the research. e.g, Selection Bias : spurious relationships that occur due to people self selecting their environment. How to minimize confounds: Random Assignment of participants into groups helps ensure the groups do not differ in important ways. If random assignment not used, then its Quasi-Experimental Video: Prisoner Of Silence - empiricism as a source of knowledge -clashes between different ways of knowing - Double Blind control (in experimental designs) -publicly verifiable knowledge Descriptive Statistics -summarize or describe properties of variables Examples: Percentages Averages Standard Deviation Normal Distribution -mean, median and mode are the same. It is symmetrical Standard Deviation (SD) is a descriptive statistic that gives a measures of how widely scores vary from the mean, and artitions distributions into standardized proportions. Inferential Statistics
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This note was uploaded on 05/25/2011 for the course PSYCHOLOGY 101 taught by Professor Walter during the Winter '11 term at Grand Valley State University.

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Psy 101(3) - Cofound factor that systematically biases the research e.g Selection Bias spurious relationships that occur due to people self

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