Dr. Suarez's research is susceptible to "participant" expectations. Dr. Thomas' work is prone to "experimenter expectations".
Participant Expectations is the manner in which members may modify their conduct contingent upon the nature and plan of the research examination.
Experimenter expectations can be a factor in experimenter bias. This happens when experimenters and trial therapists foresee that a specific finding will affirm their speculation and, for instance, misread instrumentation in a way that skews their discoveries.