What Is Meant by the 'File-Drawer Problem' in Research

Multiple Choice

What is meant by the 'file-drawer problem' in research?

A) participants unable to open a locked drawer
B) pertinent studies that failed to find a significant effect are not published
C) researchers file away data that reveal that their theory is wrong
D) too many studies are published to fit into a file
E) the experimenter cannot afford to purchase a computer