Reliability represents the degree to which the differences across subject scores are due to real differences in pain or functional ability (true variance) as opposed to measurement error.
The studies show consistent patterns across different phenotypes with significant disease prediction capacity but low ability to explain variance in genetic liability (between 0.2 and 5%).
Test-retest reliability (kappa and intraclass correlation coefficients [ICCs]), construct validity (correlations and factor analyses), discriminating ability (analyses of variance and chi-square), and responsiveness (effect sizes and standardized response means) were evaluated.
Thus the ability of physiological variance in serum chromium to impact insulin action and glucose homeostasis in humans remains unclear.
Small ability to explain variance in HbA1c constitutes a significant limitation of an instrument's use for scientific purposes as well as clinical practice.
However, the applicability of this method and the conclusiveness of its results strongly depend on the self-care assessment's ability to explain variance in the criterion variable [ 16].
Our results agree with numerical simulations that have found the hysteresis design to be more robust with respect to noise, but permit the ability to ascribe variance independently to production and decay sources.
Our models also proved to have a relatively high explanatory ability on the variance as the achieved adjusted R were 51% (ADG), 59% (FCE), 51% (Age100 kg), 66% (ADFI) and 20% (OFI), which were proportions of variation that were explained by the predictors in the models.
The remaining sire effects were sampled from a normal distribution with a mean equal to one half of the grandsire's transmitting ability and a variance equal to 3 4 σ u 2. The residual term was sampled from a normal distribution, N (0, I σ e 2 ), where I was the identity matrix and σ u 2 = 1.
Item selection was based on several criteria, including: the ability to explain variance in the dependent variable; avoidance of service provider variables in favour of variables relating to client characteristics; psychometric properties of the item; and avoidance of variables that might be easily "gamed" in order to obtain desired levels of service, either by providers or clients.
