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.
control room size
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. ...
View Full Document
- Spring '10