James Pennebaker's Research Demonstrated That

James Pennebaker's research demonstrated that

A) the case study method is ideal for examining issues of health and wellness.
B) survey results cannot always be generalized to the population of interest.
C) the findings of a correlational study can be the impetus for experimental research that determines causation.
D) naturalistic observations are sometimes the most valuable tool available to a researcher who ascribes to the scientific method.