Final answer:
A feedback measurement where guests give 1 to 5 stars, diamonds, or other symbols is known as a rating system, used to represent customer satisfaction.
Step-by-step explanation:
The type of feedback measurement mentioned in the question, where guests award between 1 to 5 stars, diamonds, forks, or other figures, is commonly known as a rating system. These systems are widely used in various industries such as hospitality, restaurants, and online services to gauge customer satisfaction and service quality. Businesses may collect data as numbers and categorically report them using these symbols to provide a visual representation of customer feedback. For instance, a hotel may be rated with stars, and restaurants might be rated with forks or diamonds, reflecting the overall customer experience ranging from poor to excellent.