# survey design

1. ### Detecting hosting companies

I am conducting research where I have a list of "ranges" which may or may not host websites. If a range has many websites there is good chance that the overall company may be a hosting company (no official definition of what that figure should be). I am trying to ascertain how many...
2. ### Analyzing the design variable of a survey

Hi, this is a stupid question. I have a survey that is stratified on size of county in square miles and designation as urban or rural. For brevity, let's say there are 2 sizes. So, in Stata I would set it up: gen s_id = . replace s_id =1 if loc=="Urban" & size==1 replace s_id =2 if...
3. ### Simple survey analysis questions

Hello all, I've been asked to assist with the statistical analysis of some survey data, and I'm a bit of a novice with this type of analysis, so I'm hoping that some with more experience can give me a bit of guidance. The investigators are interested in assessing the effectiveness of 6...
4. ### Random survey for crowd-sourcing similarities

Hi all I have a data set of around 5,000 items that I need to test how similar or dissimilar people see each item as being from each other. In theory, the items should be able to be grouped up into major and minor groupings, providing the basis for a dendrogram structure. To do this, I'm...
5. ### Survey Design Help

Hi Everyone, I am having a lot of trouble figuring out the runs for a 2*3 4*4 survey design. From the following site, it is orthogonal at 16 runs, so I don't think I am trying to do something impossible. http://neilsloane.com/doc/cent4.html But for the life of me I can't...
6. ### Asking causal questions directly vs measuring variables in a survey

Hi all, is it okay to ask causal questions like "Does A cause B?" directly as survey questions instead of asking question that measure A and B separately and then analyzing the correlation/causation between them? To explain: I have several hypotheses that look like "A causes B", say...
7. ### Fitting log-linear models to survey data with cluster variance corrections.

Dear folks-- This is not exactly a psych question, but I thought this was the forum wher I would find the most knowledge about log-linear models. If i shold relocate the question, please let me know. If you have catagorical count data from a large survey, with reported varience estimates fo...
8. ### Survey Design

Dear All, I would like to design a big survey. The population is around 70 million which is the whole country. The purpose of the design is to ask questions about politics, abortions ... 1)How many people I need to choose? 2)How can I design it so that the sample represents the whole...