Author: United States. Army. Corps of Engineers. Sacramento District
Publisher:
ISBN:
Category : Floods
Languages : en
Pages : 44
Book Description
Frequency Curves from Incomplete Samples
Author: United States. Army. Corps of Engineers. Sacramento District
Publisher:
ISBN:
Category : Floods
Languages : en
Pages : 44
Book Description
Publisher:
ISBN:
Category : Floods
Languages : en
Pages : 44
Book Description
A Reliability Test of Hydrologic Frequency Methods
Author: United States. Army. Corps of Engineers. Sacramento District
Publisher:
ISBN:
Category : Flood forecasting
Languages : en
Pages : 54
Book Description
Publisher:
ISBN:
Category : Flood forecasting
Languages : en
Pages : 54
Book Description
Adjustment of Frequency Statistics
Author: United States. Army. Corps of Engineers. Sacramento District
Publisher:
ISBN:
Category : Floods
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category : Floods
Languages : en
Pages : 20
Book Description
Statistical Methods in Hydrology
Author: Leo R. Beard
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 172
Book Description
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 172
Book Description
Journal of Research of the National Bureau of Standards
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Mathematical physics
Languages : en
Pages : 264
Book Description
Publisher:
ISBN:
Category : Mathematical physics
Languages : en
Pages : 264
Book Description
Guidance Memorandum
Author: Hydrologic Engineering Center (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
Book Description
Hydrology for Transportation Engineers
Author: Thomas Gayler Sanders
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 768
Book Description
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 768
Book Description
Hydrology for Transportation Engineers
Author: Colorado State University. Hydrology and Water Resources Program
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 768
Book Description
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 768
Book Description
Journal of Research
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Ionospheric radio wave propagation
Languages : en
Pages : 914
Book Description
Publisher:
ISBN:
Category : Ionospheric radio wave propagation
Languages : en
Pages : 914
Book Description
The Prevention and Treatment of Missing Data in Clinical Trials
Author: National Research Council
Publisher: National Academies Press
ISBN: 030918651X
Category : Medical
Languages : en
Pages : 163
Book Description
Randomized clinical trials are the primary tool for evaluating new medical interventions. Randomization provides for a fair comparison between treatment and control groups, balancing out, on average, distributions of known and unknown factors among the participants. Unfortunately, these studies often lack a substantial percentage of data. This missing data reduces the benefit provided by the randomization and introduces potential biases in the comparison of the treatment groups. Missing data can arise for a variety of reasons, including the inability or unwillingness of participants to meet appointments for evaluation. And in some studies, some or all of data collection ceases when participants discontinue study treatment. Existing guidelines for the design and conduct of clinical trials, and the analysis of the resulting data, provide only limited advice on how to handle missing data. Thus, approaches to the analysis of data with an appreciable amount of missing values tend to be ad hoc and variable. The Prevention and Treatment of Missing Data in Clinical Trials concludes that a more principled approach to design and analysis in the presence of missing data is both needed and possible. Such an approach needs to focus on two critical elements: (1) careful design and conduct to limit the amount and impact of missing data and (2) analysis that makes full use of information on all randomized participants and is based on careful attention to the assumptions about the nature of the missing data underlying estimates of treatment effects. In addition to the highest priority recommendations, the book offers more detailed recommendations on the conduct of clinical trials and techniques for analysis of trial data.
Publisher: National Academies Press
ISBN: 030918651X
Category : Medical
Languages : en
Pages : 163
Book Description
Randomized clinical trials are the primary tool for evaluating new medical interventions. Randomization provides for a fair comparison between treatment and control groups, balancing out, on average, distributions of known and unknown factors among the participants. Unfortunately, these studies often lack a substantial percentage of data. This missing data reduces the benefit provided by the randomization and introduces potential biases in the comparison of the treatment groups. Missing data can arise for a variety of reasons, including the inability or unwillingness of participants to meet appointments for evaluation. And in some studies, some or all of data collection ceases when participants discontinue study treatment. Existing guidelines for the design and conduct of clinical trials, and the analysis of the resulting data, provide only limited advice on how to handle missing data. Thus, approaches to the analysis of data with an appreciable amount of missing values tend to be ad hoc and variable. The Prevention and Treatment of Missing Data in Clinical Trials concludes that a more principled approach to design and analysis in the presence of missing data is both needed and possible. Such an approach needs to focus on two critical elements: (1) careful design and conduct to limit the amount and impact of missing data and (2) analysis that makes full use of information on all randomized participants and is based on careful attention to the assumptions about the nature of the missing data underlying estimates of treatment effects. In addition to the highest priority recommendations, the book offers more detailed recommendations on the conduct of clinical trials and techniques for analysis of trial data.