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Evaluation norms

Questions have been raised about the feasibility of establishing evaluation norms that can be used across different populations and settings, or with similar tests used on different computer test systems. Certainly, situational factors influence performance on computerized performance tests. In addition, epidemiological factors, such as gender and age, have been demonstrated to influence performance on these tests. Due to mechanical and electronic differences across computer systems,... [Pg.103]

Proposed Analysis. The first step is to evaluate normative properties to establish a baseline for treatment design, then to evaluate dysfunction characteristics, scope, and extent of disintegration. Most deterioration appears to have occurred close enough to the surface for evaluation and treat-... [Pg.339]

We assume that A is a symmetric and positive semi-definite matrix. The case of interest is when the largest eigenvalue of A is significantly larger than the norm of the derivative of the nonlinear force f. A may be a constant matrix, or else A = A(y) is assumed to be slowly changing along solution trajectories, in which case A will be evaluated at the current averaged position in the numerical schemes below. In the standard Verlet scheme, which yields approximations y to y nAt) via... [Pg.422]

Flexible budgeting is more widely used than static budgeting despite certain logic difficulties. This is so because production in many cases is seasonal and the use of a static production norm might distort evaluation of performance. Variances are the difference between the actual costs expended and the budgeted costs expec ted. Variances are unfavorable if positive and favorable if negative. Any variance should be explained and, if necessaiy, controlled the largest variance should be considered first. [Pg.857]

Residual minimization method (RMM-DIIS). Wood and Zunger [27] proposed lo minimize the norm of the residual vector instead of the Rayleigh quotient. This is an unconstrained minimization condition. Each minimization step starts with the evaluation of the preconditioned residual vector K for the approximate eigenstate... [Pg.72]

Being the elements of different spaces, the solution Zh and the right-hand side iph of the difference problem should be evaluated in different norms. [Pg.97]

Estimate (52) indicates an effective reduction of the speed of convergence of scheme (51) on the non-equidistant grid ui), in comparison with scheme (44) on the equidistant grid. However, as we have stated above, if the error of approximation is evaluated not in the grid norm of the spaces C or Ljj but in a specially constructed negative norm ( ip then the error of approximation on any non-equidistant grid will be of the same order 0 h ). Namely, the negative norm... [Pg.115]

To decide for yourself whether scheme (16) is stable with respect to the initial data, a first step is to evaluate the solution of problem (16a). This can be done using the method of separation of variables and deriving estimate (18) in the grid Z/2(o j)-norm ... [Pg.307]

Since B = E + 2r Qp > E, Theorems 6 and 9 in Chapter 6, Section 3 are still valid for scheme (59), on account of which the error of approximation V to the second initial condition can be most readily evaluated in the norm where... [Pg.587]

Guidelines V 7 N/A Yes, procedures of committee of medical ethics for clinical trials Yes, set up by the Research Committee of the Ministry of Health V V 9 Yes, norms and regulation of research in clinical pharmacology No, applications are sent to external experts for evaluation... [Pg.95]

The results from more recent studies have not clarified the issue. In a study of the general population in Belgium in which 2 sets of data were collected at a 6-year interval, Staessen et al. (1996) found that blood pressure was not correlated with PbB or ZPP concentrations in men or women. The study further found that the risk of becoming hypertensive was not associated with PbB or ZPP concentrations measured at the first data collection. Results from the evaluation of participants in the Normative Aging Study showed that an increase in tibia bone lead of about 29 pg/g was associated with an increased odds ratio of hypertension of 1.5 (Hu et al. 1996a). However, the authors acknowledged that the procedures used to... [Pg.282]

In order to answer the question of whether economic evaluation can or should play a particular part in the decisions mentioned above, carry out a two-step procedure. First, we introduce some theoretical aspects that may help to find the right approach to these issues, and then, having studied the matter from a normative viewpoint, we attempt to show how economic evaluation can contribute towards these putting solutions into practice. [Pg.147]

On the scale of assimilability, groups turn out to be predictably ordered according to their degree of deviation from a white Protestant norm, and the division of Caucasians into light and dark suspiciously coincides with the earlier scheme of distinct white races. Thus the purely cultural matter of assimilation is not entirely independent of race, even for those who have now become Caucasians the light -skinned Jew who is not physically different and thereby not burdened with negatively evaluated racial traits assimilates more easily than his dark-skinned co-religionist, the dark Caucasian.43... [Pg.118]

In the next section, the flame speed development of Zeldovich, Frank-Kamenetskii, and Semenov will be discussed. They essentially evaluate this term to eliminate the unknown ignition temperature 7] by following what is now the standard procedure of narrow reaction zone asymptotics, which assumes that the reaction rate decreases very rapidly with a decrease in temperature. Thus, in the course of the integration of the rate term lv in the reaction zone, they extend the limits over the entire flame temperature range T0 to T. This approach is, of course, especially valid for large activation energy chemical processes, which are usually the norm in flame studies. Anticipating this development, one sees that the temperature term essentially becomes... [Pg.158]

To compute the various cosine-like similarity indices it is necessary to evaluate, respectively, the inner product (vA,VB) and Euclidean norms 11 vx f I = V(vx,vx) (see also Eqs. 2.43 and 2.44) ... [Pg.24]

If systems are inappropriately used, the results of those systems are questionable at best. Validation review of a system must include an analysis of proper use and an evaluation of the degree to which normal user behavior falls within those proper use norms. [Pg.179]


See other pages where Evaluation norms is mentioned: [Pg.97]    [Pg.102]    [Pg.97]    [Pg.102]    [Pg.415]    [Pg.460]    [Pg.139]    [Pg.188]    [Pg.267]    [Pg.115]    [Pg.407]    [Pg.718]    [Pg.778]    [Pg.94]    [Pg.17]    [Pg.158]    [Pg.23]    [Pg.389]    [Pg.264]    [Pg.128]    [Pg.161]    [Pg.35]    [Pg.66]    [Pg.13]    [Pg.13]    [Pg.14]    [Pg.17]    [Pg.276]    [Pg.179]    [Pg.217]    [Pg.397]   
See also in sourсe #XX -- [ Pg.102 , Pg.104 ]




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Evaluating matrix norms

NORM

Norming

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