# meta analysis

1. ### Combining two ORs with the same control group

Hi everybody. I am doing a meta-analysis of observational studies. As the disease I am working on has different stages, some of the studies reported ORs(95%CI) for each stage separately in comparison to a single (shared) control population. I wonder if we can combine these two ORs (and their...
2. ### Data-fusion / Meta-analysis

Description I have three separate test I perform over the course of an interview. At the end of the interview the tests analyze their respective data and spit out an assessment that says the person being interviewed was excited by the interview or annoyed by the interview along with a...
3. ### meta-analysis combined p-value from different tests

I want to examine whether the students of School A have done significantly better than the students of School B in science subjects. In Math, School A does moderately better (p-value: 0.06) than school B. We observe similar and consistent results for physics (p-value:0.09) and chemistry...
4. ### Confused with meta-analysis (Hedges); credibility intervals

Dear All, Many thanks in advance for reading this - any help is gratefully received! I'm trying to combine the incidence rates for a complication of surgery (a ratio that i'm using as r). I am using the Hedges method Random Effects Model (as i have hetrogeneity in my studies). I want to...
5. ### Meta Analysis - Correlation Coefficients with only M and SD

Hi Folks, I'm am currently assisting on a Meta-Analysis and we are currently faced with correlating variables without the raw scores. The question has 2 parts, however I feel like the answer to one will likely relate to the other. I want to know how to calculate the correlation coefficient...
6. ### Critical literature review- lost to how to analyize data from many different sources

Critical literature review- choose a topic, select many papers (30-50), extract data from papers and critically analyze to determine the overall results of all literature. I have around 50 papers for my topic. All have been analyzed in different ways, different stats, methods...I have to...
7. ### Correlation

I have a number of studies I am looking at and trying to compare their correlation coefficients ... esentially do a meta-analysis of correlation coefficients. I have been using Practical Meta-analysis by Lipsey and Wilson, but have not made much progress. I've also found some online resources...
8. ### How to use a meta-analysis to assess the equivalence of two different procedures?

I'm making a comparison of two surgical procedures, and I want to know how I can analyze the data I have for a meta-analysis. The overall surgical procedure is the same, but some authors choose to modify the procedure a bit. So basically I have a large number of studies with the standard...
9. ### Meta analysis possible if only Relative Risks and 95% CI's are available?

Dear members, My knowledge of statistics is extremely limited. Since a few months I am wondering if it is possible to perform a meta analysis in SPSS if only Relative Risks (RR's) and 95% CI's are available from scientific publications. Here is a link to a table showing a meta-analysis...