John Ridley Stroop

John Ridley Stroop (; March 21, 1897 – September 1, 1973), better known as J. Ridley Stroop, was an American psychologist whose research in cognition and interference continues to be considered by some as the gold standard in attentional studies and profound enough to continue to be cited for relevance into the 21st century. However, Christianity was the real passion of his life; psychology was simply an occupation.