matching

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matching

 [mach´ing]
1. comparison and selection of objects having similar or identical characteristics.
2. the selection of compatible donors and recipients for transfusion or transplantation. See also typing.
3. the selection of subjects for clinical trials or other studies so that the different groups being compared are similar in specified characteristics, e.g., age, sex, or race, in order to reduce bias caused by comparison of dissimilar groups. Matching may be on an individual (matched pairs) or a group-wide basis.
cross matching crossmatching.

match·ing

(match'ing),
The process of making a study group and a comparison group in an epidemiologic study comparable with respect to extraneous or confounding factors such as age, gender, and weight.

matching

EBM
The grouping of individuals or groups by researchers based on particular variables thought to be important (such as gender or age). In a case-control study, if the controls are chosen because of particular similarities to the people who are in the case group, the cases and controls are said to be “matched”.

Social medicine
The attempt to select adoptive parents similar to the child being adopted, as in appearance, interests, intelligence, personality or other traits, so as to achieve the best outcome for the adoption.

matching

Clinical trials A process by which a study group and comparison group are 'equalized' with respect to factors viewed as extraneous to the study's central questions, that might interfere with interpreting data on study completion. See Case-control study. Cf Match.

match·ing

(mach'ing)
The process of making a study group and a comparison group in an epidemiologic study comparable with respect to extraneous or confounding factors such as age, sex, and weight.

match·ing

(mach'ing)
Process of making a study group and a comparison group in an epidemiologic study comparable with respect to extraneous or confounding factors.

Patient discussion about matching

Q. Hi members, after I notice that our symptoms match those of fibromyalgia. Hi members, after I notice that our symptoms match those of fibromyalgia, do we have to live with it and simply manage it for the rest of our life or try some luck with food and meds? Thanks.

A. If you could have given a particular age details then it could have been easy to analyze. This condition is relatively new, yet it's appearing in epidemic numbers. Dr. Whiting (an orthomolecular nutritionist), finds in his work with people suffering with this that they are all very toxic. When their systems have been properly detoxified their symptoms will disappear. His personal feeling is that this is a condition of hyper-toxicity and manifests itself in people who are unable to physically cope with the overload of toxins in their system.

More discussions about matching
References in periodicals archive ?
Overall data for this phase showed support for the matching theory, demonstrating increases in communication responses as a function of CRF for these behaviors.
The purpose of this investigation was to explain intra-response class covariation from the matching theory perspective.
From the perspective of the matching theory, as more efficient responses (e.g., functional communication) increase, less efficient responses (e.g., severe problem behavior) decrease.
However, according to matching theory, to the extent that parents increase rewards accruing to their children in the form of social attention, rates of negative-attention-seeking behavior will decline.
Not only does an appreciation for matching theory suggest a set of far-ranging clinical interventions.
To summarize, matching theory tell us at least two very important things about behavior.
Matching theory is broadly concerned with response-reinforcer (operant) contingencies.
In the present paper the principles of behavioral momentum and matching theory have been discussed.
Third, the single-alternative VI data from Phase 2 provided a test of matching theory's constant-k requirement.
The variation in k requires post hoc manipulations of matching theory, such as allowing for changes in response topography as a function of changes in reinforcer magnitude.
Despite these limitations, the present results are consistent with several other studies that challenge matching theory's account of single-alternative responding (Bradshaw et al., 1978; Dallery et al., 2000; Herrnstein, 1974; McDowell & Dallery, 1999; McDowell & Wood, 1984, 1985).
Falsification of matching theory's account of single-alternative responding: Herrnstein's k varies with sucrose concentration.