Using hedonic scales or facial scales is an example of which type of survey?

The use of hedonic scales or facial scales falls under the category of satisfaction surveys. Hedonic scales are designed to measure an individual's level of pleasure or satisfaction with a particular food item or meal, often using a series of facial expressions that range from very unhappy to very happy. This method effectively captures subjective feelings about food and can help assess consumer preferences or satisfaction levels.

Satisfaction surveys aim to evaluate how well a product meets customer needs and expectations, making them a crucial tool in food service and nutrition environments. By employing these scales, dietitians and food service professionals can better understand how their offerings are received and make informed adjustments to enhance the overall dining experience.

The other options, while related to consumer feedback, do not specifically utilize the tactile or visual response that hedonic scales provide. Frequencies of acceptance typically involve quantifying how often a product is accepted versus rejected but don’t focus on the degree of satisfaction. Averages check might relate to general summaries of data without delving into satisfaction levels that facial expressions convey. Plate waste focuses on the amount of food left uneaten rather than the satisfaction with the food itself.