operant conditioning, saccade, copulatory, stereotypy, automaton, startle reflex, muybridge, microelectrode, capuchins, interviewee, appreciator, asker, schopenhauer, robotlike, prodder, fmri, dyads, erwin schrodinger, positron, graviton, perceiver, autodidactic, theremin, clinician, listener, empiricist, solitariness, pedagogue, mole rat, habituation, stirrer, piano tuner, rhesus monkey, germanica, superposition, lepidopterist, ivan pavlov, mesmerism, inchworm, norbert wiener, inkblots, metaphysician, materialists, goniometer, invariance, viewer, quasicrystal, konrad lorenz, nystagmus, polarities, antiparticle, supersolid, anatomist, doglike, inhomogeneity, fermions, plethysmograph, ethologist, exerciser, popularizer, serialist, valsalva maneuver, describer, eegs, rene descartes, reactance, biped, perseveration, polyhedron, introvert, inquirer, metaphysicians, electroencephalograph, brainwaves, experimentalist, behaviorism, cloven hoof, laterality, excitation, sensualist, prairie vole, abraham maslow, solipsist, eugenicist, wheal, punster, muon, mimesis, rebus, quantum electrodynamics, szilard, verbalization, planchette, dipole moment, swain, gamow, microscopist, collagist, olfactometer, hearer, dialectics, experimenters, investigator, experimentalists, photographer, researcher, interviewer, musician, gardener, genealogist, navigator, potter, searcher, bibliographer, craftsman, inventor, ornithologist, surveyor, teacher, learner, peer, respondent, covariate, audience, minimal, perpetrator, pharmacodynamic, postulated, acculturative, causal, ecologic, facilitative, follower, interpersonal, intrapersonal

double-blind experiment, double-blind procedure, double-blind study, experimenter bias

investigator, researcher, research worker