a study based upon direct viewing of partakers wherein the experimenter passively views the actions of the partakers without any effort toward intervention or voluntary changing of the actions being viewed. Such analyses commonly consist of viewing of partakers under naturalistic conditions instead of the random designation of partakers to experimental conditions.
OBSERVATIONAL STUDY: “The results of the observational study would let researchers know where they stand and what steps need to be taken to find a proper course of treatment for this type of cancer.”