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overhead_1 - AN EXPERIMENT Circumstances Behaviors gender...

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Unformatted text preview: AN EXPERIMENT Circumstances Behaviors gender number toys chosen jdepsngfnt random - —— varia e . rou Size number a ress acts variables I: _g_p__ A etc. teacher ratings independent I: _—- - —— variable non Viol vs VIOI —> etc. TV Size control room size variables -——-—— etc. confounding variable I: M 0 independent variable: The main variable of interest that the experimenter sets at two levels or more to see whether it affects the dep. var. 0 dependent variable: the behavior measured (dependent on levels of ind. var.) 0 random variable: a variable allowed to seek its own level with randomization 0 control variable: a variable set at a given level and not allowed to change 0 confounding variable: a variable that changes along with the levels of the independent variable which prevents a clear statement of cause and effect A CORRELATIONAL OBSERVATION .E’ 1 0 El cc U) 0) (D C (D .2 (I) (D 9 g 1 < 1 10 Violence Rating of TV Viewed You cannot infer causality from a correlational observation, only from an experiment. ...
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