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EXAM 1 topics - Lecture 1 SCIENTIFIC METHOD constitute...

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Lecture 1: SCIENTIFIC METHOD constitute data (example- movie ratings) STATISTICS: a science of drawing conclusions from data (EXAMPLE- mean=3.3/4 stars) CATIGORICAL VARIABLES: Social Class, Political Party, Population density, religion QUANTITATIVE VARIABLES: # of siblings, # of students in class , % of female students at AU, time, weight, income in dollars, education in total yrs of schooling . DISCRETE VARIABLES , CONTINUOUS VARIABLES INDEPENDENT VARIABLE: variable that is being manipulated (this v that) DEPENDENT VARIABLE: variable that is measured by the researcher (Sleep or math results) EXPERIMENT: Study a cause- and-effect relationship through manipulation of the ID while observing changes in the DV- the groups are randomly selected. QUASI EXPERIMENT: comparison of preexisting groups by giving then different treatments. SURVEY: researcher observes and measures variables of interest to find relationships between the variables. There is no attempt to manipulate the ID (whether there is a
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