Don’t Abbreviate: An Experimental Comparison of the U.S. State Display Designs Commonly Used in Surveys and Forms*

Abstract

Forms and surveys often require address information, including state. State data entry fields in online forms typically use a dropdown where the user selects one state from the list. A review of online forms shows a variety of state lists used, with some including the state name fully spelled out while others use the state abbreviation, and still others use a combination of the two, like MD-Maryland. Through a series of three independent experiments, we investigate usability of state list designs as measured by time-on-task, accuracy of answers, or user preference. Results indicate that participants have difficulty with state abbreviations alone. That design results in longer time-on-task, and lower accuracy and preference, particularly for states where the user does not live. We did not find any significant difference in usability for full state names compared to the abbreviation and state name combination in a dropdown design.