A popular soft drink company periodically sets up survey booths in various malls and grocery stores that are chosen at random.The employees working the booths ask interested individuals to fill out a very short survey on the quality of the company's drinks.While filling out the surveys,the individuals are told that a properly completed survey will be rewarded with giveaways,such as free samples,T-shirts,generous coupons,and possibly an appearance in a new television commercial.What,if any,will be the most noticeable bias?

Question

Quizplus · Accepted Answer

The most noticeable bias in this scenario is response bias. The promise of rewards and giveaways can influence individuals to give positive feedback and rate the quality of the drinks higher than they would have without the incentives. This can lead to an overestimation of the actual quality of the drinks.

A Popular Soft Drink Company Periodically Sets Up Survey Booths