The Woodworth Personal Data Sheet, sometimes known as the Woodworth Psychoneurotic Inventory, was a personality test, commonly cited as the first personality test,[1] developed by Robert S. Woodworth during World War I for the United States Army. It was published in 1918[2] and it was developed to screen recruits for shell shock risk but was not completed in time to be used for this purpose.[3] It instead became widely used in psychological research and led to the development of many other personality tests.[3] It has been described as "the linear ancestor of all subsequent personality inventories, schedules and questionnaires".[4]