Final answer:
The IAAUS changed its name to the NCAA in the year 1910.
Step-by-step explanation:
The student has asked when the Intercollegiate Athletic Association of the United States (IAAUS) changed its name to the National Collegiate Athletic Association (NCAA). The IAAUS officially took on the name of the NCAA in 1910. This change marked an important moment in college sports history as the organization would go on to play a significant role in shaping collegiate athletics in the United States.