In this experiment, there are several potential problems that could potentially skew the results. The lack of randomization within the tasting can potentially swing the results in a specific direction. Randomization refers to the "chance process" (Christensen et al, 2020, p. 133). By providing a designated order for each of the participants, there is no control group to compare results. This can also be considered the order effect, which refers to the potential influence the order may have had on the ratings (Christensen et al., 2020, p. 140). Rather than having each participant try the sodas in the same order, Professor Foley should create groups within the sample and randomize the order in each group. This will increase the reliability and validity of the results. Demand characteristics may also influence the participants' ratings in this study. Demand characteristics refer to any cues available that "influence the responses of the participants (Christensen et al., 2020, p. 113). If the cola's had their labels visible, or the participants knew the order, they may have been influenced to rate certain sodas higher than others. Another thing to consider is the environment in which the test took place. The sodas may have started cold but became warm throughout the experiment. This could have also influenced the ratings. Removing the labels and increasing the randomization of the experiment factors can help provide more accurate ratings and results. The disadvantages could include more room for errors and inconvenience for the researcher. What are your thoughts about this? W