Sample Size
Sample Size Calculation: Inaccurate A Priori Assumptions for Nuisance Parameters Can Greatly Affect the Power of a Randomized Controlled Trial.
... correct sample size is of utmost importance [4, 5] and the CONSORT State- ment states that sample size calculations must be reported and justified in published articles ...
8
A regression-based differential expression detection algorithm for microarray studies with ultra-low sample size.
... One solution to the “p n” problem is penalized regression, in which solutions to the classi- fication problem are penalized for using additional information [13, 15]. This “soft” form of di- mension reduction ...
17
A Sample Size Calculation of Bayesian Design for Superiority Trials with Rare Events
... The sample size calculation based on Bayesian predictive probability [4], [5] was used for Bayesian design whereas Farrington and Manning methodology was used for frequentist ...
5
Scientific Notes Interference of sample size on multicollinearity diagnosis in path analysis
... of sample size on multicollinearity diagnosis in path ...six sample sizes were designed, and from the amplitude of the bootstrap confidence interval, it was observed that sample size ...
5
Conservation of Forest Biodiversity: how sample size affects the estimation of genetic parameters
... the sample size (Nei and Roychoudhury 1974), while allelic richness and inbreeding coefficient are more dependent on the number of analyzed ...of sample size in such estimations becomes an ...
6
Sample size for estimating the population of stink bugs in soybean crops
... The sample size (number of sampling points) in estimating the mean (m) of the population density of stink bugs in combinations of phase and bug species and phenological stage, with the semi-amplitude of the ...
13
Sample size for estimating mean and coefficient of variation in species of crotalarias
... of sample size (number of pods) required to estimate the mean of each of the eight characters in each species of crotalaria, maximum limits of ACI 95% were fixed, of 2% (greater precision), 4%, 6%, ...of ...
11
Sample size for estimate the average of Passiflora caerulea fruits traits
... the sample size varied between 259 and 2,559 fruits at harvest and between 46 and 4,739 fruits after cold ...observed sample sizes from 52 to 11,933 fruits and from 111 to 539 fruits, respectively, ...
8
Sample size for measurement of root traits on common bean by image analysis
... the sample size of the root system in order to estimate root traits of common bean (Phaseolus vulgaris ...root sample demanded 21 minutes, and scanning the entire root system demanded 4 hours and 53 ...
6
TRIANGULAR FUZZY MULTINOMIAL CONTROL CHART WITH VARIABLE SAMPLE SIZE USING α – CUTS
... members are more skewed for each variable sample sizes. The weights of the membership degree are also assumed as 1, 0.75, 0.5, 0.25 and 0 in the Fuzzy Multinomial distribution control chart. To overcome these ...
9
SAMPLE SIZE FOR ASSESS THE LEAF BLAST SEVERITY IN EXPERIMENTS WITH IRRIGATED RICE
... The sample size for the average estimation of blast’s severity was different among treatments and ...the sample size, and this relationship was included in the methodology ...three ...
10
Optimum sample size in quantitative characteristics of seeds of polyembryonic mango
... optimal sample size, it is possible to reduce costs in both human and financial resources, in addition to the optimization of time (LORENTZ, 2004, SANTOS et ...
8
Sample size requirements for studies of treatment effects on beta-cell function in newly diagnosed type 1 diabetes.
... a sample size calculation using the raw values might be preferred even though, based on the computations herein, a smaller sample size might be computed using a ...
14
Sample size for full‑sib family evaluation in sugarcane
... Stalk diameter and SN presented the smallest estimates for CVe (%), indicating good experimental accuracy, but SD presented the highest estimate for CVg (%), which indicates great genetic variability within the families, ...
13
An Adjustable Sample Size Estimation Model for Usability Assessment
... both sample size values and a way to adjust them, based on their problem discovery ...the Sample Size ( λ α ) from Alpha ( α) Factor: α is already explained in numerous research works mainly ...
8
Sample size for the assessment of soybean inbred populations
... minimum) sample size to estimate parameters for grain yield is 200, when using S 1 ...effective size of ...adequately sample the population (Souza Júnior ...
5
Sample size matters: investigating the effect of sample size on a logistic regression susceptibility model for debris flows
... the sample (Guns and Vanacker, 2012), and it is also clear that the aim of every susceptibility model should be a reliable and reproducible ...the sample that is taken in order to select the variables and ...
20
Estimating Sample Size of Soil Cone Index Profiles by Bootstrapping
... the sample mean and medians of CI values per layer. The minimum sample size to estimate the vertical profile of mean CI values at different levels of precision and confidence was determined from data ...
12
Sample size in the estimation of correlation coefficients for corn hybrids in crops and accuracy levels
... the sample size necessary for the estimation of the Pearson linear correlation coefficients for single, triple and double corn hybrids in crops and accuracy ...the sample size necessary to ...
9
Sample size for estimating average productive traits of pigeon pea
... Necessary sample size, in number of plants, for estimating the average of root fresh mass, (RFM), stem fresh mass (SFM), leaf fresh mass (LFM), fresh mass of shoots (FMOS), total fresh mass (TFM), root dry ...
7