نتایج جستجو برای: stratified random sampling

تعداد نتایج: 494458  

Journal: :J. Symb. Log. 2002
Arthur W. Apter Joel David Hamkins

Can a supercompact cardinal κ be Laver indestructible when there is a level-by-level agreement between strong compactness and supercompactness? In this article, we show that if there is a sufficiently large cardinal above κ, then no, it cannot. Conversely, if one weakens the requirement either by demanding less indestructibility, such as requiring only indestructibility by stratified posets, or...

Journal: :Journal of Accounting Research 1986

Journal: :Open Journal of Statistics 2013

2002
Alexandre Hirzel Antoine Guisan

Designing an efficient sampling strategy is of crucial importance for habitat suitability modelling. This paper compares four such strategies, namely, ‘random’, ‘regular’, ‘proportional-stratified’ and ‘equal-stratified’*/to investigate (1) how they affect prediction accuracy and (2) how sensitive they are to sample size. In order to compare them, a virtual species approach (Ecol. Model. 145 (2...

Journal: :Monte Carlo Methods and Applications 2015

Journal: :Communications for Statistical Applications and Methods 2010

2014
Mohammad Sadegh Allahyari Seyyed Ali Noorhosseini

This study was carried out to identify agroeconomic factors on adoption integrated rice-fish farming by farmers. A survey was conducted using a stratified random sampling to collect data from farmers of selected villages in Guilan province, north of Iran. The questionnaire validity and reliability ware also determined to enhance the dependability of the result. Data were collected from 184 resp...

2013
MENKA Saini

The paper is an attempt to visualize a comparative view of rural and urban spatial patterns of beggars’ employment, variations in the level of their socio-economic status, and the relationship between their rate of employment with selected variables of socio-economic development in Aligarh district of Uttar Pradesh. The study is based on primary source of data, collected through the field surve...

2015
Reza Valizadeh Milad Rashidbeygi Esmat Shirbeigi Kourosh Sayehmiri

Background: Evidence based medicine (EBM) is very crucial in physician’s decisions. Several studies have been conducted on EBM in Iran, but none have referred to barriers regarding EBM. Objectives: In order to address this issue, we conducted a study on physicians to determine their attitudes towards the barriers to EBM. Patients and Methods: This study was a cross-sectional analytical study. O...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید