bootstrap

  1. P

    Random Resampling from Nest Data

    First off, thanks for your help if you have any comments, and I apologize if there is a post about this somewhere (I was unable to find one). So, here is my problem. I need to randomly draw samples from my dataset of grouped data. I have observations in separate rows. Each participant belongs...
  2. M

    AMOS Bootstrapping - Mean Chi Square/df?

    Hi, I am working on a project modelling a variety of psychological outcomes for AIDS-affected youth in South Africa. Inevitably, some of our variables are not normally distributed, so we have used the bootstrapping procedure available in AMOS to estimate paremeters in the model...
  3. B

    Bootstrapping confidence intervals for prediction based on SE of the coefficients?

    Is it remotely legitimate to use the standard errors of the coefficients from linear regression in a Monte Carlo simulation to bootstrap 2.5%/97.5% confidence intervals on the predictions? If so (or if not), is there any literature relevant to this approach?
  4. G

    Help to interpret bootstrap and sobel results from spss

    Hi, I'm trying to understand the meaning of these results - my hypothesis is that EA mediates between CNFU and PI. Is the mediation full or partial? What does the insignificance of CNFU mean? What else can I learn from these results? VARIABLES IN SIMPLE MEDIATION MODEL Y...
  5. C

    large samples and resampling stats

    First post here. Mods- please move thread if in wrong place. I am working with a very large dataset (total n = 30,000+) of normally distributed measurement data on birds. Sample sizes are such that any and all traditional (e.g., ANOVA) hypothesis tests are statistically significant. Rather...