Mr. Simcot is conducting a study on specific Patrick is an undergraduate student assisting Amy, a doctoral student, with her dissertation research. They obtained the following trial-based data on a particular session:
Amy: + + - + - - + - + +
Patrick: + - + + - - - - + +
What is the interobserver agreement (IOA) for the data above?
Group of answer choices
A. 50%
B. 55%
C. 70%
D. 60%