Discuss the trade-offs that must be made in experimental design formulation when trying to obtain realistic amounts of internal and external validity
What will be an ideal response?
It is desirable to have an experimental design that has both internal and external validity, but in applied marketing research often we have to trade one type of validity for another. To control for extraneous variables, a researcher may conduct an experiment in an artificial environment. This enhances internal validity, but it may limit the generalizability of the results, thereby reducing external validity. For example, fast-food chains test customers' preferences for new formulations of menu items in test kitchens. Can the effects measured in this environment be generalized to fast-food outlets? In spite of these deterrents to external validity, if an experiment lacks internal validity, it may not be meaningful to generalize the results. Factors that threaten internal validity may also threaten external validity, the most serious of these being extraneous variables.
You might also like to view...
Holders of a bond or preferred stock with common stock warrants attached cannot detach and redeem the warrants separately from the bond or preferred stock
Indicate whether the statement is true or false
Financial institutions that exchange digital images of checks must also send the original paper checks
Indicate whether the statement is true or false
Andrew and Margaret Wilson erected a fence in what they thought was the yard of their Durham, North Carolina home in 1957 . In doing so, they inadvertently enclosed a small triangular piece, no bigger than fifteen feet at its widest, of the adjoining landowner's property. In 1980, Carl Pearce and his wife Wanda bought the property adjacent to that of the Wilsons, and claimed the triangular shaped
property belonged to them. A dispute arose as to who owned the property under state law, and a lawsuit ensued. What court(s) would have jurisdiction over the lawsuit? a. Federal district court in North Carolina b. North Carolina state trial court c. Federal Appeals court d. State court of appeals in North Carolina
Excel's Chart Tools does NOT have a chart type for constructing a _____
a. bar chart b. pie chart c. histogram d. stem-and-leaf display