When symptoms are diminished or eliminated not because

of any specific treatment but because the patient believes

that a treatment is effective, we see the power of the

 

 therapeutic relationship c. humane care movement

 

 placebo effect d. animal magnetism effect

 

. German psychiatrist Emil Kraepelin contributed to the study

of abnormal psychology by

 

. observing hundreds of living patients

 

 introducing two diagnostic categories

 

. laying the groundwork for a classification system