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Lecture

Research Methods

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Department
Psychology
Course
Psychology 2720A/B
Professor
Clive Seligman
Semester
Winter

Description
Psychology 2720b Research Methods Question 1 Is there a statistical relationship between two variables y Correlationso Measure of the degree of association between two variableso Varies between 1 and 1 o Example Alcohol consumption and wealth y Problems with correlations1 Each variable may cause the othera Wealthalcohol consumptionb Alcohol consumptionwealth2 Neither variable causes the other each is caused by a third variablea CA B b Feet and ability to readexplained by maturation not by each othery Conditions for causalityo Presumed cause must occur before the presumed effect o Cause and effect must correlate Not measured by joint occurrence of two variableso Rule out other reasonable explanations other than the presumed causeo Are results due to chance Statistical procedur
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