bootstraping

  1. M

    Choosing a method for a two-sample statistical test

    Hello everyone, I am trying to find a best method to analyze the difference between two datasets. The thing is I have a separate software where I calculated environmental impacts from production of a certain chemical substance. However, not all information was available about the actual content...
  2. M

    Estimated Parameter as Dependent Variable

    Hi, Would anybody be able to help me with the following problem? That would be great!! :) In my analysis I follow a two-step approach. In the first step, I model the effect of some beta on y while controlling for other variables. (Please note that I calculate the 1st step separately for 50...
  3. R

    Boston Naming Test

    Dear Friends, I am trying to define the differences of two means in Boston Naming Test (BNT). I want to conduct a multipl regression with education and age as covariates. However, The raw scores of BNT are very skewed due to the high ceiling effect. I have found heteroscedasticity in my...
  4. P

    Conducting longitudinal interaction analysis, using bootstrapping.

    In relation to my dissertation, I am looking for someone with the competences to perform interaction analysis in m plus on longitudinal data, with the use of bootstrapping and checking for potential level 2 clustering effects. I would offer authorship on the article and / or payment. If someone...
  5. L

    How much of bootstraping is too much?

    Analysts typically mention that the observations should not be correlated. In bootstraping, you are violating this. However, is there any statistical test on autocorrelation of the observed data? Simply, does any statistical test provide an answer on the question in the title? Also, imagine...
  6. S

    extremely small sample size

    I have a Y variable that is measured in parts per million (ppm). However, it can be converted to a binomial variable comparing against a p=.1. The problem is only 4 samples were collected, and the response of telling them to collect more samples is not possible. Is there any statistical test...