Results 61 to 70 of about 12,763,770 (297)
Basic Statistical Concepts for Sample Size Estimation
Indian Journal of Anaesthesia, 2008 For grant proposals the investigator has to include an estimation of sample size .The size of the sample should be adequate enough so that there is sufficient data to reliably answer the research question being addressed by the study.
Vithal K Dhulkhed +4 more
doaj
Pediatric Blood &Cancer, EarlyView.ABSTRACT Purpose To explore caregivers' experiences and perceptions of the nutritional challenges faced by children and adolescents undergoing cancer treatment, including oral intake and the use of nutritional support. Methods This was a qualitative study based on focus groups with parents and caregivers at a Brazilian pediatric oncology hospital ...
Danyelle Apparecida Balsamão Marques +5 more
wiley +1 more source
Sample size in orthodontic randomized controlled trials: are numbers justified? [PDF]
, 2013 Sample size calculations are advocated by the Consolidated Standards of Reporting Trials (CONSORT) group to justify sample sizes in randomized controlled trials (RCTs).
Despina Koletsi +5 more
core +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Transitioning from pediatric to adult care is a high‐risk period for individuals with sickle cell disease (SCD). An initial observation at one academic medical center suggested a sex‐based disparity in clinic populations, prompting a national investigation.
Laurie J. Duckworth +5 more
wiley +1 more source
Effective Sample Size: Quick Estimation of the Effect of Related Samples in Genetic Case-Control Association Analyses [PDF]
, 2007 Correlated samples have been frequently avoided in case-control genetic association studies in part because the methods for handling them are either not easily implemented or not widely known.
Daniel Kastner +5 more
core
Addressing the sample size problem in behavioural operational research: Simulating the newsvendor problem [PDF]
, 2016 Laboratory-based experimental studies with human participants are beneficial for testing hypotheses in behavioural operational research. However, such experiments are not without their problems. One specific problem is obtaining a sufficient sample size,
Dimitriou, S. +8 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Heavy menstrual bleeding (HMB) is a common condition among adolescents and young adults (AYAs) and is the leading cause of iron deficiency anemia (IDA) in this population. Growing evidence suggests that social determinants of health (SDOH) influence menstrual bleeding patterns, access to care, and treatment. However, no studies have
Maria Carter‐Febres +6 more
wiley +1 more source
Estimating Sample Size with Weibull Failure [PDF]
The Egyptian Statistical Journal, 1979 In censored type I samples, the total number n of individuals may be unknown. If the parent distribution is exponential Marcus-Blumenthal (1975) estimated n using Bayesian and non-Bayesian approaches.
S.K. Ashour, O.A. Shalaby
doaj +1 more source
Journal of Investigative Surgery, 1993 This paper sets forth the basic concepts of the calculation of sample size and power in clinical research. It provides the reader with a basic understanding of the relationship between sample size and power and the components within the research, such as the variability of the measure being used as the primary outcome. The paper also discusses a number
openaire +2 more sources