body plethysmograph: plethysmograph consisting of a chamber surrounding the entire body; used in studies of respiration
plethysmograph: a measuring instrument for measuring changes in volume of a part or organ or whole body (usually resulting from fluctuations in the amount of blood it contains)
self-report personality inventory: a personality inventory in which a person is asked which of a list of traits and characteristics describe her or him or to indicate which behaviors and hypothetical choices he or she would make