Jenae is able to purchase a different brand of coffee for half the price from a new supplier. She anticipated that her co-workers would object to switching to the new brand, as they were really partial to the coffee they have been drinking so far. Indeed, when offered a taste test of the old brand versus the new brand, her co-workers unanimously rejected the new brand.

Jenae's boss, Steven, pointed out that this result was most likely due to the fact that the taste test was not ________.

blinded

controlled

randomized

replicated