Analysis of Messy Data Volume 1

Milliken, George A.; Johnson, Dallas E.

doi:10.1201/ebk1584883340

Cited by 319 publications

(229 citation statements)

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“…Keyboard players achieved the highest maximal tapping rate (mean, left-right average: 138.8 taps/20 s), followed by string players (mean, left-right average: 130.3 taps/ 20 s) and nonmusicians (mean, left-right average: 117.9 taps/ 20 s). Post hoc t-tests, which were protected by Fisher's least significant difference (Milliken and Johnson 2009), revealed that only the difference between the keyboard players and the nonmusicians reached significance (P = 0.014; string players − nonmusicians: P = 0.132; keyboard players − nonmusicians: P = 0.265; (see Fig. 2).…”

Section: Maximal Finger Tapping Ratementioning

confidence: 99%

“…Whereas the subject playing piano could not remember daily practice hours at that time (but told us that he did not practice much), the subject playing trombone reported having practiced for a maximum of 1 h a day. (Milliken and Johnson 2009). Greenhouse-Geiser correction was used in both ANOVAs when Mauchly's sphericity test indicated nonsphericity.…”

Section: Tractography-based Analysis Of Diffusivity Parametersmentioning

confidence: 99%

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Differential Adaptation of Descending Motor Tracts in Musicians

2013

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Between-group comparisons of musicians and nonmusicians have revealed structural brain differences and also functional differences in motor performance. In this study, we aimed to examine the relation between white matter microstructure and high-level motor skills by contrasting 2 groups of musicians with different instrumentspecific motor requirements. We used diffusion tensor imaging to compare diffusivity measures of different corticospinal motor tracts of 10 keyboard players, 10 string players, and 10 nonmusicians. Additionally, the maximal tapping rates of their left and right index fingers were determined. When compared with nonmusicians, fractional anisotropy (FA) values of right-hemispheric motor tracts were significantly higher in both musician groups, whereas left-hemispheric motor tracts showed significantly higher FA values only in the keyboard players. Voxel-wise FA analysis found a group effect in white matter underlying the right motor cortex. Diffusivity measures of fibers originating in the primary motor cortex correlated with the maximal tapping rate of the contralateral index finger across all groups. The observed between-group diffusivity differences might represent an adaptation to the specific motor demands of the respective musical instrument. This is supported further by finding correlations between diffusivity measures and maximal tapping rates.

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Section: Maximal Finger Tapping Ratementioning

confidence: 99%

Section: Tractography-based Analysis Of Diffusivity Parametersmentioning

confidence: 99%

Differential Adaptation of Descending Motor Tracts in Musicians

2013

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“…The comparison between cultivars of certain variables was done by using Fisher's LSD test following Analysis of Variance (ANOVA) at =0.05. (Milliken and Johnson, 1992). Data calculation was done by using computer application of Statistical Analysis System (SAS-Institute, 1985).…”

Section: Selectionmentioning

confidence: 99%

Selection and field evaluation to increase yield and quality of several black rice accessions

Halimi

Haryadi

Kholiq

et al. 2018

IJARe

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Yield and quality of some local black rice cultivars were low as the panicle in the same clump do not reach maturity at the same time. This research program utilized plants of three local black rice cultivars of "Mariana", "Purwokerto", and "Toraja". The plants were planted in pots and placed under a plastic house. Some agronomic traits were measured, including number of productive tiller (NPT) and NPT with mature grains in the panicle>85% (NPT-85). Selected plants were determined by quadrant method of NPT-85 over NPT. After three selection cycles, the research reveals four potential accessions of 17,21,28), 15,23,33); 23,27), and Toraja-06.07 (11,13,19). These four accessions called as Unsri P-1 to Unsri P-4, respectively. Field evaluation indicated, the accessions were able to produce high quality grain with NPT-85 over NPT ratio ranged from 87% to 95 %, and yield potential ranged from 6.16 to 8.81 dry un-hulled grain t/ha.

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“…The significance of the variance components is usually tested at higher levels, such as α = 10% or α = 30% (e.g. [37]). We kept the random effects in the model if their variances were significant at α = 30%.…”

Section: Model Calibration and Evaluationmentioning

confidence: 99%

Predicting individual tree mortality in northern hardwood stands under uneven-aged management in southern Québec, Canada

et al. 2008

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-This study proposes a generalized linear mixed model to predict individual tree mortality in northern hardwood stands under uneven-aged management. The model is based on a complementary log-log (CLL) link function, and was calibrated using permanent-plot data. Tree vigor, stem product, diameter at breast height and stand basal area were tested as explanatory variables. A plot and an interval random effect were specified to account for spatial correlations. When compared with the traditional logit link function, the CLL facilitates the inclusion of the time factor. In this case study, there was an important variability of mortality predictions between the plots and the intervals for a given plot. The interval random effect is thought to be associated with catastrophic mortality. Since both tree vigor and stem product proved to be significant mortality predictors, we recommend that these variables be evaluated to increase the accuracy of mortality models. mortality / generalized linear mixed model / random effects / hardwoods / single-tree selection cutting Résumé -Prévision de la mortalité des tiges individuelles dans les peuplements de feuillus nobles sous aménagement inéquienne dans le sud du Québec, Canada. Cette étude présente un modèle linéaire mixte généralisé pour la prévision de la mortalité dans les peuplements de feuillus nobles sous aménagement. Le modèle utilise une fonction de lien log-log complémentaire (LLC) et a été étalonné à l'aide de données de placettes permanentes. La vigueur de l'arbre, le produit, le diamètre à hauteur de poitrine et la surface terrière ont été testés comme variables explicatives. Des effets aléatoires de placette et d'intervalle ont été spécifiés dans le modèle afin de tenir compte des corrélations spatiales. Comparée au traditionnel logit, la fonction de lien LLC facilite l'inclusion du facteur temps. Dans ce cas d'étude, il existait une importante variabilité des prévisions entre les placettes et les intervalles de temps d'une même placette. On présume que l'effet aléatoire d'intervalle représente la mortalité catastrophique. Puisque la vigueur et le produit des tiges se sont avérés être des variables significatives, il est recommandé de les évaluer afin d'améliorer la précision des modèles de mortalité. mortalité / modèle linéaire mixte généralisé / effets aléatoires / feuillus nobles / jardinage par pied d'arbre

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Analysis of Messy Data Volume 1

Cited by 319 publications

References 0 publications

Differential Adaptation of Descending Motor Tracts in Musicians

Differential Adaptation of Descending Motor Tracts in Musicians

Selection and field evaluation to increase yield and quality of several black rice accessions

Predicting individual tree mortality in northern hardwood stands under uneven-aged management in southern Québec, Canada

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