Hawthorne effect


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Related to Hawthorne effect: placebo effect, Hawthorne studies

effect

 [ĕ-fekt´]
a result produced by an action.
additive effect the combined effect produced by the action of two or more agents, being equal to the sum of their separate effects.
adverse effect a symptom produced by a drug or therapy that is injurious to the patient.
Bainbridge effect Bainbridge reflex.
Bohr effect decreased affinity of hemoglobin for oxygen caused by an increase of carbon dioxide; the oxyhemoglobin dissociation curve is displaced to the right because of higher partial pressure of carbon dioxide and lower pH. See also Haldane effect.
The Bohr effect causing a shift to the right in the oxyhemoglobin dissociation curve.
Crabtree effect the inhibition of oxygen consumption on the addition of glucose to tissues or microorganisms having a high rate of aerobic glycolysis; the converse of the Pasteur effect.
cumulative effect the action of a drug or treatment resulting from repeated use.
Doppler effect see doppler effect.
experimenter e's demand characteristics.
extrapyramidal e's the side effects caused by neuroleptic medications, including dystonias, parkinsonism, akathisia, and tardive dyskinesia.
Haldane effect increased oxygenation of hemoglobin promotes dissociation of carbon dioxide; see also Bohr effect.
Hawthorne effect a psychological response in which the subjects in a research study change their behavior simply because they are subjects in a study, not because of the research treatment.
heel effect variation in x-ray beam intensity and projected focal spot size along the long axis of the x-ray tube from cathode to anode.
parallax effect the position of the image on each emulsion of dual emulsion film; it is accentuated by tube-angled x-ray techniques.
Pasteur effect the decrease in the rate of glycolysis and the suppression of lactate accumulation by tissues or microorganisms in the presence of oxygen.
photoelectric effect ejection of electrons from matter as a result of interaction with photons from high frequency electromagnetic radiation, such as x-rays; the ejected electrons may be energetic enough to ionize multiple additional atoms.
placebo effect the total of all nonspecific effects, both good and adverse, of treatment; it refers primarily to psychological and psychophysiological effects associated with the caregiver-patient relationship and the patient's expectations and apprehensions concerning the treatment. See also placebo.
position effect in genetics, the changed effect produced by alteration of the relative positions of various genes on the chromosomes.
pressure effect the sum of the changes that are due to obstruction of tissue drainage by pressure.
proarrhythmic effect any new, more advanced form of arrhythmia caused by an antiarrhythmic agent, especially those that produce hemodynamically important symptoms. These arrhythmias occur less than 30 days after initiation of treatment and are not due to a new event such as acute myocardial infarction or hypokalemia.
side effect a consequence other than that for which an agent is used, especially an adverse effect on another organ system.
Somogyi effect see somogyi effect.

Haw·thorne ef·fect

(haw'thōrn),
the effect (usually positive or beneficial) of being under study, on the people being studied; their knowledge of the study often influences their behavior.
[city in Illinois; site of the Western Electric plant]
A beneficial effect that health care providers have on workers in most settings when an interest is shown in the workers’ well-being and performance, irrespective of whether or not the intervention was a good one

Hawthorne effect

Psychology A beneficial effect that health care providers have on workers in most settings when an interest is shown in the workers' well-being. See Halo effect, Placebo effect, Placebo response. Cf Nocebo.

Haw·thorne ef·fect

(haw'thōrn e-fekt')
Reaction (usually positive or beneficial) of being under study, on the people being studied; their knowledge of the study often influences their behavior.
[city in Illinois]
References in periodicals archive ?
Parsons, "What Happened at Hawthorne?: new evidence suggests the Hawthorne effect resulted from operant reinforcement contingencies," Science, vol.
THE SOURCE: "Was There Really a Hawthorne Effect at the Hawthorne Plant?
To our knowledge, no studies of the Hawthorne effect have examined whether subjects in noninterventional observational studies, who are not directly informed about the outcomes of interest, change their behavior during the observation period with regard to those outcomes.
As mentioned before, the Hawthorne effect and recurring awareness-raising efforts have a measurable impact on people-driven processes.
We feel this was due to increased awareness (the Hawthorne Effect).
A common problem in survey research is known as the Hawthorne effect. This is what happens when people try to guess what the surveyor wants and then answer accordingly.
They might also respond positively because of the Hawthorne Effect (Roethlisberger & Dickson, 1939).
Partner ratings by children paired in academic activities (C2) and those in the Hawthorne Effect control group (C3) did not change over the three test administration times.
One has to assume that we are merely seeing a Hawthorne effect on a population with much closer and better follow-up.
Interestingly, TV viewing time also decreased in the control group, which may have been related to either seasonal variation (i.e., less TV in the summer) or the Hawthorne effect (being observed changes behavior).
Hawthorne Effect aside, fiber optic sights definitely suit the needs of many shooters.
"I do agree there is certainly a Hawthorne effect because we were focused on quality and talking about it," said Dr.