heterogeneity

  1. T

    Multiple Meta-Regression in Stata Help

    I'm new to meta-analysis and to Stata. I understand how to use the user interface to insert multiple covariates into a meta-regression. However, I am not sure how to interpret the output and to make sure that the software has controlled for multiplicity and covariate correlation - so that I...
  2. B

    Heterogeneity calculation based on odds ratios and confidence intervals

    Hi, I wonder if you might be able to help with testing for heterogeneity (Cochran's q or I-squred) in meta-analysing genotypic odds ratios in two groups from two different genetic associations studies of the same phenotype. (This question pertains to genetics, but the principle, I believe, is...
  3. K

    MANCOVA MANOVA_assumptions_ heterogeneity of regression slopes

    Hallo there :wave:, I am examining the difference in illness models (by asking several questions: DV) for refugees and non-refugees (IV) (both n= 100). In addition, we asked about several confounding variables / covariates (demographic data). I hypothesis that DV (illness model) will differ...
  4. K

    MANCOVA MANOVA_assumptions_ heterogeneity of regression slopes

    Hallo there :wave:, I am examining the difference in illness models (by asking several Likert scale type questions: DV) for refugees (n=100) and non-refugees (IV)(n=100). In addition, we asked about several confounding variables / covariates (demographic data). I hypothesis that the illness...
  5. V

    Finding heterogeneity in simple data set (which day is the most different?)

    I have a data set with an amount of tests that were done by a group of people for each day over two weeks (no weekends). Basically, I need to know which day differs the most from others. Here is the data set: M T W TR F 48 43 42 40 50 47 49 42 46 51 38 44 47 53 52 41 46 47...
  6. J

    Gravity model with fixed effects - controlling for the heterogeneity

    Hi Stata users, I'm quite new to Stata and econometric packages in general, so I'd like to get some hints on how to specify a gravity model for international trade between different countries. My panel consists of 133 countries over 19 years - thus we have 17556 combinations of importers (ci)...
  7. E

    Confused which test would help me

    Hello! I have a problem with defining what method I should use. I have two groups in my data file. One is control group, the other one was treated with drugs. Besides that all items (they're nerve cell) have two variable: length and width. I created a scatter plot placing length on the...
  8. K

    Mixed ANOVA - normal distribution with heterogeneity - transformation advice

    Hello, First time poster here. Any advice is appreciated: I'm doing analysis of clinical trial data using SPSS. I'm doing a mixed ANOVA looking at score differences at three points in time (baseline, middle, final) for two groups of people (Intervention, Control). N=76, intervention n=26...