1to5

1to5 is a term used to describe a five-point rating scale used to quantify opinions on a domain such as satisfaction, quality, or agreement. It is not tied to a specific product or brand, but rather a common tool in survey methodology and performance evaluation.

Typical implementations assign the numbers 1 through 5, with 1 representing the lowest evaluation and 5 the highest. Some versions provide semantic anchors for each point, such as very dissatisfied to very satisfied, or use the midpoint as neutral.

Common uses include customer satisfaction surveys, usability testing, employee performance reviews, and educational rubrics. The scale yields ordinal data that allow ranking and trend analysis. Caution is needed when aggregating to a mean, as the distance between points may be uneven and responses can be influenced by central tendency or acquiescence biases.

When designing a 1to5 instrument, researchers decide on endpoints, whether to include a neutral middle, whether to label intermediate points, and how to handle missing data. The choice of labeling and the presence of a neutral option can affect response patterns and interpretability.

Relation to broader methodology: The 1to5 form is a common variant of Likert-type scales, which originated in social science research in the early 20th century. It shares features with semantic differential scales and other rating systems used to measure attitudes, satisfaction, and performance.