Results 11 to 20 of about 3,610 (168)

Using information from network meta-analyses to optimize the power and sample allocation of a subsequent trial with a new treatment

BMC Medical Research Methodology, 2022
Background A critical step in trial design is determining the sample size and sample allocation to ensure the proposed study has sufficient power to test the hypothesis of interest: superiority, equivalence, or non-inferiority.
Dapeng Hu, Chong Wang, Fangshu Ye, Annette M. O’Connor   +3 more
doaj   +1 more source

The Dark Side of Firm Diversity: An Empirical Examination of the Impact of Firm Diversity on Resource Allocation Efficiency in Multidivisional Firms

Istanbul Business Research, 2022
There is a renewed debate about whether multidivisional firms allocate resources efficiently across their divisions. This paper contributes to the literature on this debate by developing and testing a conceptual framework that links resource allocation ...
Mehmet Nasih Tağ
doaj   +1 more source

Structure of local government budgets and local fiscal autonomy: Evidence from Indonesia [PDF]

Public and Municipal Finance, 2022
This study aimed to investigate the critical aspects of Indonesia’s local government budget structure. The impact of the budget on local fiscal autonomy was also examined by separating the sample of provinces in Java Island and Bali versus Non-Java ...
Musviyanti, Fibriyani Nur Khairin, Hariman Bone, Muhammad Abadan Syakura, Rizky Yudaruddin   +4 more
doaj   +1 more source

Optimal Allocation of the Sample in the Poisson Item Count Technique

Acta Universitatis Lodziensis. Folia Oeconomica, 2018
Indirect methods of questioning are of utmost importance when dealing with sensitive questions. This paper refers to the new indirect method introduced by Tian et al.
Michał Bernardelli, Barbara Kowalczyk
doaj   +1 more source

Comparison of sampling effort allocation strategies in a stratified random survey with multiple objectives

Aquaculture and Fisheries, 2020
Stratified random survey is commonly used to estimate abundance indices of fish populations in multispecies survey, providing reliable data for stock assessment and fisheries management. In some cases, however, the sample size is relatively small because
Guosheng Zhang, Jing wang, Ying Xue, Chongliang Zhang, Binduo Xu, Yuan Cheng, Yiping Ren   +6 more
doaj   +1 more source

Estimation for Two Sensitive Variables Using Randomization Response Model Under Stratified Random Sampling

Mathematics
When direct survey are about sensitive characteristics such as addiction to drugs, alcoholism, proneness to tax invasion and sexual violence, nonresponse bias and response bias become serious problems because people oftentimes do not wish to give true ...
Gi-Sung Lee, Ki-Hak Hong, Sung-Hwan Kim, Chang-Kyoon Son   +3 more
doaj   +1 more source

Estimation of Finite Population Mean in Multivariate Stratified Sampling under Cost Function Using Goal Programming

Journal of Applied Mathematics, 2014
In practical utilization of stratified random sampling scheme, the investigator meets a problem to select a sample that maximizes the precision of a finite population mean under cost constraint.
Atta Ullah, Javid Shabbir, Zawar Hussain, Bander Al-Zahrani   +3 more
doaj   +1 more source

A simulation study for comparing testing statistics in response-adaptive randomization

BMC Medical Research Methodology, 2010
Background Response-adaptive randomizations are able to assign more patients in a comparative clinical trial to the tentatively better treatment. However, due to the adaptation in patient allocation, the samples to be compared are no longer independent ...
Lee J Jack, Gu Xuemin
doaj   +1 more source

An evaluation of the effects of sample size on estimating length composition of catches from tuna longline fisheries using computer simulations

Aquaculture and Fisheries, 2020
Length composition analysis can provide insights into the dynamics of a fish population. Accurate quantification of the size structure of a population is critical to understand the status of a fishery and how the population responds to environmental ...
Jiaqi Wang, Luoliang Xu, Bai Li, Siquan Tian, Yong Chen   +4 more
doaj   +1 more source

A Fairness Index Based on Rate Variance for Downlink Non-Orthogonal Multiple Access System

Future Internet, 2022
Aiming at the resource allocation problem of a non-orthogonal multiple access (NOMA) system, a fairness index based on sample variance of users’ transmission rates is proposed, which has a fixed range and high sensitivity.
Jie Yang, Jiajia Zhu, Ziyu Pan
doaj   +1 more source