"He posted a series of questions to students there asking them to provide a response and rate their degree of confidence in their answer. Results showed a shocking degree of inaccuracy which sparked interest among many other psychologists who continued to conduct experiments on eyewitness testimony" (Parrot, Becky). Cattell helped make psychology a legitimate science which made it worthy of studying at the highest levels of the academia. Alfred Binet, a French psychologist, was inspired by Cattell's work. He replicated it and started to study the results of other psychological experiments that had to do with the law and criminal justice. Binet's work in intelligence testing also became relevant to the development of forensic psychology. Another important psychologist in the history of forensic psychology is William Stern. Stern studied witness recall. He asked his students to write a summary about a dispute that happened between two students. Stern found common errors among the witnesses. He continued to study the issues surrounding testimonies. He later established the first journal devoted to applied psychology. .
Hugo Munsterberg, a German-American psychologist, believed that psychology applies to everyday life. "Later on in his years, his interests turned to some of the practical applications of psychological principles. He had a strong opinion that psychologists had the responsibility to find out information that could be used in the real world. As a matter of fact, he was the first person to apply psychology into the legal area which also contributed to the development of forensic psychology. Munsterberg wrote a variety of papers on the application of psychological information in legal situations. The main point of his papers was on eyewitness testimony which focused on the viability of eyewitnesses" (Harrington, Kyle). In 1908, he wrote a book titled On the Witness Stand which is a collection of magazine articles he wrote himself discussing different psychological factors that can change a trial's outcome.