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Questions related to Sampling Design
My samples are psuedobulbs of Spathoglottis plicata (Philippine Ground Orchid)
12 December 2016 773 0 View
Soil systems comprise a multitude of processes across scales and disciplines. As they are part of the "critical zone" the exploration and monitoring of these systems is central in most terrestrial...
11 November 2016 2,722 0 View
Just interested in sampling more bio indicator organism's in different aquatic ecosystem.......
29 July 2016 6,247 3 View
07 July 2016 2,576 3 View
Kindly share experiences/samples on the design and methodology.
07 July 2016 8,045 2 View
Considering dry and wet season
06 June 2016 1,724 0 View
Is there any specific "Sampling Design" that considers the geographical characteristics of the region/area in the study of social sciences, if the region is considerably driven by its geographical...
05 May 2016 7,649 4 View
03 May 2016 8,481 3 View
We are trying to estimate the biomass of adult snook in Brazilian estuaries where underwater visual census methods cannot be used. A method using gillnets perhaps? Thank you. We have found methods...
29 April 2016 6,814 2 View
Can we use stratified and quota sampling if population is unknown? If yes then how?
14 April 2016 4,822 5 View
It's common for marketers insist on a stratified sample design to ensure adequate representation of the relevant segments for analysis, even when it would lead to a rift with random methods. Some...
04 April 2016 5,134 7 View
04 April 2016 6,325 2 View
Dear RG Members. I am using the Demographic & Health Surveys (DHS) data in a research about children's maltreatment. As you know, DHS data have a complex sampling design with strata and...
04 April 2016 9,761 3 View
04 April 2016 1,729 5 View
If visual data is collected as part of interviews, how should the visual data be analysed and presented/ integrated in a PhD dissertation? The visual data includes samples of designs/ design...
02 February 2016 2,116 4 View
I am using one research paper as a reference to rationalize the sample size in a content analysis study that I am doing. Is it correct to use this approach?
11 January 2016 3,244 6 View
Hello researchers, I am looking for PAD in diabetics, I have a proposal here. I am looking forward to a comprehensive questionnaire, an adequate sample size and an expertise of opinion in defining...
01 January 2016 3,254 0 View
Hello everybody, I am doing soil quality study using the attached sampling design. Recently questions are raised regarding the quality of the data collected in that manner. Originally, the...
01 January 2016 5,810 3 View
01 January 2016 6,771 8 View
When the sampling rate is T, the resolution is 2T by Nyquist theorem. Maybe irregular sampling can do it. I want some details about irregular sampling.
01 January 2016 6,034 4 View
It is a cross-sectional study to find out associations between specific factors and smoking behavior. Target population: 13 to 15 years old adolescents in school settings; the population size...
12 December 2015 4,445 2 View
In a case control study, systematic sampling design for case (with disease) and purposive sampling design for control (without disease non -case healthy individual) can both design be used?
12 December 2015 561 4 View
12 December 2015 5,305 2 View
For sample size needs for inference for continuous data or for proportions, William Cochran - Cochran, W.G(1977), Sampling Techniques, 3rd ed., John Wiley & Sons - noted that we need...
20 November 2015 5,870 5 View