MKTG 3100 Lecture Notes - Lecture 3: Time Management, Test Market, Internal Validity

• School: University of Iowa
• Department: Marketing
• Course: MKTG 3100
• Professor: Ying Yang

Document Summary

Conducting causal research: ace evaluations at the end of the year. Consistent variation - evidence of the extent to which x and y occur together or vary together in a way predicted by the hypothesis. Time order - evidence that shows x occurs before y. Elimination of other explanations - evidence that allows the elimination of factors other than x as the cause of y. Scientific investigation in which an investigator manipulates one or more independent variables and observes the degree to which the dependent variables change. Everything else stays the s day, what you"re selling, e. Seasons can mess up find ther nt the same - time of ng, etc. findings. Internal validity: the degree to which an outcome can be attributed to an experimental variable and not to other factors. Lab experiments tend to have higher levels of internal validity.