BUS 358 Lecture Notes - Lecture 10: Dependent And Independent Variables, Random Assignment, Repeated Measures Design

• School: Stony Brook University
• Department: Business Management
• Course: BUS 358
• Professor: Mohammed Osman

Document Summary

Experiments widely used in causal rsrch: mkting experimenter manip 1+ indep variables and holds constant all other possible independent variables while observing effects on dep variables. Researcher can ctr variables in an experiment to a degree not possible in a survey. Researchers refer to participants in experimental research as subjects. The rsrcher subjects research participants to some experimental manip. An experimental condit refers to one of the possible lvls of experimental variable manip. Blocking variables categorical variables such as subj gener or ethnicity. Covariate continuous variable expected to show stat relationship w/ dep var. Main effect refers to experimental diff n means b/w diff levels of any single experimental var. Interactions: interaction effect is change in dep var due to specific combination of indep var, researchers often depict experimental results w/ line graph, when lines have diff slopes, an interaction is likely present.