{Reference Type}: Journal Article {Title}: Reciprocity models revisited: intention factors and reference values. {Author}: Hinz J;Nicklisch A;Sommer ML; {Journal}: Int J Game Theory {Volume}: 53 {Issue}: 2 {Year}: 2024 {Factor}: 0.649 {DOI}: 10.1007/s00182-024-00898-z {Abstract}: We present a test of the two most established reciprocity models, an intention factor model and a reference value model. We test characteristic elements of each model in a series of twelve mini-ultimatum games. Results from online experiments show major differences between actual behavior and predictions of both models: the distance of actual offers to the proposed reference value provides a poor measure for the kindness of offers, while a comparison of offers with extreme offers as suggested by the intention factor model makes offers indiscriminable in richer settings. We discuss possible combinations of both models better describing our observations.