Many do-it-yourself (DIY) marketing researchers and others are not aware of the shortcomings often found in the quality of data generated via:

Many do-it-yourself (DIY) marketing researchers and others are not aware of the shortcomings often found in the quality of data generated via:


a. Online panels.
b. Focus groups.
c. Mall intercepts.
d. Telephone surveys.


Answer: a. Online panels.


Learn More :