Basic Marketing Research 8th Edition by Tom Brown,Tracy Suter,Gilbert Churchill

تمرين 9

You have developed a questionnaire designed to measure attitudes toward a series of television ads for a new snack food product. The respondents, as a group, will view the ads on a computer and then complete the questionnaire. Due to logistical circumstances beyond your control, you must split your sample o respondents into three groups and collect data on three separate days. What steps might you take in an effort to minimize possible variance in scores caused by the three separate administrations