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Firstly because, from a psychometric perspective, measurement by a single item does not distinguish the variance attributed to measurement error from true score variability.
Although the oscillometric blood pressure devices are popularly used to estimate the SBP and DBP, these devices provide only one estimate with no confidence interval (CI) and users are not able to distinguish the statistical variance in the estimates from the intrinsic variability exhibited by physiological processes [ 10].
As shown in Table 2, an intrinsic χDIA value is assigned to a solid material, and the numerical values indicate that the materials of two different particles are generally distinguished if the variance of their measured χDIA values (denoted δχ) is above the level of ~10−8 emu/g11.
In determining the number of factors which can be distinguished, the eigenvalues, the explained variance, intercorrelations and the scree test were visually inspected.
21 Hospital-level reliability was estimated for items with 3- and 5-point response scales using one-way Analysis of variance (ANOVA) to distinguish the between-hospital variance from the within-hospital variance.
The second PC explained 6.70% of the total variance and distinguished the French genotypes Gabès and Magali-A from the cultivated tetraploid sativa genotypes from the US.
This helps to distinguish whether the variance explained per chromosome is expected because SNPs have a small variance, or alternatively, whether there is a large QTL contributing to the chromosomal genetic variance.
The PCA analysis clearly distinguished the parameters under study into 2 PCs with 75.20 % cumulative variance (Fig. 6).
The first principal component distinguished the western and middle European accessions from the Caucasian and Russian individuals, explaining a variance of 20%.
Several qualities distinguished the modern.
Atchley et al. (2005) used factor analysis to distinguish the common and unique variance of approximately 500 AA indices.
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