Early in the History of Psychology a Memory Researcher (Ebbinghaus)used

Multiple Choice

Early in the history of psychology a memory researcher (Ebbinghaus) used himself as the only research participant in his study.Given this information,what might cause you to be skeptical about his results?

A) The results were not gathered scientifically.
B) The sample was probably not representative.
C) People are smarter than they used to be.
D) Most studies of memory focus on college students.