What's the difference between bias and heuristic?

Bias


Definition:

  • (n.) A weight on the side of the ball used in the game of bowls, or a tendency imparted to the ball, which turns it from a straight line.
  • (n.) A leaning of the mind; propensity or prepossession toward an object or view, not leaving the mind indifferent; bent; inclination.
  • (n.) A wedge-shaped piece of cloth taken out of a garment (as the waist of a dress) to diminish its circumference.
  • (n.) A slant; a diagonal; as, to cut cloth on the bias.
  • (a.) Inclined to one side; swelled on one side.
  • (a.) Cut slanting or diagonally, as cloth.
  • (adv.) In a slanting manner; crosswise; obliquely; diagonally; as, to cut cloth bias.
  • (v. t.) To incline to one side; to give a particular direction to; to influence; to prejudice; to prepossess.

Example Sentences:

  • (1) Such a decrease significantly biased survival (p = 0.001).
  • (2) Even though attempts to generalize the data from childbearing women to women of childbearing age have an inherent conservative bias, the results of our study suggest that 988 women (95% CI 713 to 1336) aged 15 to 44 years in Quebec had HIV infection in 1989.
  • (3) These deficiencies in the data compromise HIV surveillance based on diagnostic testing, and supplementary bias-free data are needed.
  • (4) In addition, despite the fact that the differences constitutes an information bias, the bias occurs in the same direction and magnitude in all the various subgroups and thus is nondifferential.
  • (5) However, each of the studies had numerous methodological flaws which biased their results against finding a relationship: either their outcome measures had questionable validity, their research designs were inappropriate, or the statistical analyses were poorly conceived.
  • (6) Methods to minimize bias in the design and implementation of consultation-liaison research are suggested.
  • (7) Results were inconsistent with both the feature detector fatigue and response bias hypothesis.
  • (8) Special conditions apply for the scoring of a first and a last bone stage in a sequence, which will introduce less bias in the estimation of individual skeletal maturity with the MAT-method than with the TW-method.
  • (9) The greater use of health services for female children probably accounts for the female-biased sex ratio among the Mukogodo.
  • (10) The possibility that selective bias or unmeasured environmental differences might explain the difference in BP between the two groups is discussed.
  • (11) In Study 4, attributional biases and deficits were found to be positively correlated with the rate of reactive aggression (but not proactive aggression) displayed in free play with peers (N = 127).
  • (12) Significant biases in the distribution of cases of babesiosis were found with regard to season (P < 0,05), sex (P < 0,001) and coat colour (P < 0.01).
  • (13) This suggests that monitoring heart rate during limited portions of the day will provide a biased estimate of overall heart rate.
  • (14) Analogous biases and solutions apply to other sampling problems in health services research.
  • (15) Only eye position proved statistically significant; straight-ahead eye position induced more bias than did fixation of the visual stimulus.
  • (16) A model was investigated which simulated choices one may have between disease classification tests, to determine how the required sample size and bias in the estimates of the risk ratio and risk difference varied between tests.
  • (17) Paradigm relies heavily on social science research and analysis to help companies identify and address the specific barriers and unconscious biases that might be affecting their diversity efforts: things like anonymizing resumes so that employers can’t tell a candidate’s gender or ethnicity, or modifying a salary negotiation process that places women and minorities at a disadvantage.
  • (18) We confirm that sera from patients on intravenous therapy with lidocaine exhibit a positive bias in results for creatinine but that lidocaine itself does not interfere.
  • (19) We discuss advantages and disadvantages of total randomization, of Zelen-type randomization procedures, of Efron-type procedures vs more classical blocking procedures to control the balance between groups, and of Simon-Pocock-type procedures vs more classical stratification for controlling possible biases in prognostic factors.
  • (20) (4) R(XY)(t,tau) is a biased estimator of the shape of h(t), generally over-estimating both its time to peak and its rise time.

Heuristic


Definition:

  • (a.) Serving to discover or find out.

Example Sentences:

  • (1) Two methods for diagnostic classification of the electrocardiogram are described: a heuristic one and a statistical one.
  • (2) Within the Theory of Dual Radiation Action, the heuristically useful function, gamma(chi), that two energy depositions, a distance chi apart, will result in observable damage can be written in terms of two more fundamental quantities: One, s(chi), describes the structure of the sensitive matrix of the cell.
  • (3) The immune alterations of Down's syndrome and those of infantile AIDS may be taken as heuristic examples in this sense.
  • (4) The authors point out the conceptual, heuristic, and practical clinical advantages of examining living preference rather than traditional correlates of hospital tenure.
  • (5) Use of the CGAS can be of heuristic value to complement other methods of diagnostic categorization.
  • (6) The generalization of the algorithm to reconstruct gene conversions and the possibility for heuristic versions of the algorithm for larger data sets are discussed.
  • (7) The clinical nurse specialists contributed many of the heuristics in the determination of self-care deficit as a nursing diagnosis.
  • (8) The present article suggests one means by which this may be achieved while still retaining the heuristic value of Matte Blanco's systems.
  • (9) A set of heuristics, employing information concerning nuclear hemoglobin content, is shown to discriminate nucleated erythrocytic cells from those of the leukocyte series.
  • (10) (i) knowledge about the processes of the system under investigation, expressed in terms of a Continuous System Simulation Language (CSSL); (ii) heuristic knowledge on how to reach the goals of the simulation experiment, expressed in terms of a Rule Description Language (RDL); and (iii) knowledge about the requirements of the intended users, expressed in terms of a User Interface Description Language (UIDL).
  • (11) In Duchenne muscular dystrophy the course of the different enzyme activities can be described by an heuristic mathematical formula (y = Ae-at + bte-ct).
  • (12) The starting points for energy minimizations were generated from the following two types of inputs: (a) the amino acid sequence and (b) the heuristic inputs, which were derived according to physical, chemical, and biological principles by piecing together all useful information available.
  • (13) Thirdly, neuropsychological-neurophysiological studies are "heuristic" fishing-expeditions to find a presumed abnormality to account for psychopathology, without doing the prospective longitudinal research necessary to validate such theory.
  • (14) Superficial knowledge level characterized by the intuitive reasoning from test results to diseases and deep knowledge level referring to the relations among the pathophysiologic states were stratified, and the heuristics based on the experiences at bed-side were incorporated in this knowledge representation.
  • (15) The heuristic models are equivalent to diffusion theory for diffuse incident light, but not for collimated incident light.
  • (16) While agreeing with Veatch's criticisms of unilateral ethical decision making by physicians, Kultgen argues that his contract model has only limited value--as a heuristic device for thinking about the principles underlying medical ethics--while conceptual difficulties preclude its serving to reconcile conflicting traditions in ethical theories or to achieve a consensus on a morally valid medical covenant.
  • (17) The use of a genetic marker as a heuristic diagnostic criterion in a subgroup of heredofamilial psychoses with unclear diagnostic boundaries is proposed.
  • (18) There were still quite a few Marxists at Oxford in those days – Terry Eagleton and his clique were seemingly bolted to the same table in the King’s Arms the entire time I  was an undergraduate – but while I was silly and naive enough to believe in the purifying, energising effects of violent revolution, I wasn’t obtuse enough to think of dialectical materialism as anything more than a powerful heuristic.
  • (19) A six-factor model provides a heuristic framework for understanding adherence behavior: (1) effective provider communication; (2) rapport with provider; (3) client's beliefs and attitudes; (4) client's social climate and norms; (5) behavioral intentions; and (6) supports for and barriers to adherence.
  • (20) The heuristics modify and link the explanations to make the physician aware of diagnostic complexities.