A psychologist is working with a patient who suffers from a very rare disorder. Which type of research is the psychologist likely to use?

A) Laboratory research
B) Survey research
C) Case study
D) Replication

A case study would allow the psychologist to closely examine and gather detailed information about the patient's unique disorder and individual experiences. Laboratory and survey research may not be applicable or effective for studying rare and specific disorders. Replication is a method used to validate previous research findings, but in this case, there may not be previous research to replicate.