Search results

  1. spunky

    spaghetti

    I would like to object to this post because it highlights those with spaghetti-making-privilege. #checkyourspaghettiprivilege (Disclaimer: I still don't know how to make spaghetti right :()
  2. spunky

    Standard deviation of sampling distribution when n=1

    Was this quote taken from an textbook in intro stats/methodology aimed at social scientists?
  3. spunky

    Warning "The estimated weights for the factor scores are probably incorrect" in fa function (psych)

    Wow… that’s… not a great method. Not only did the authors completely ignore the problem of factor indeterminacy as well as the fact that any number of (infinite) factor rotations would have given them different factor scores… they made-up their own, ad-hoc version of how to obtain “factor...
  4. spunky

    Warning "The estimated weights for the factor scores are probably incorrect" in fa function (psych)

    Aha! That is the problem. Because a mix of metrics (so basically it is a matrix of polyserial/polychoric/Pearson/correlation matrices and those are estimate one correlation at a time as oppose to simultaneously. So you ended up with a correlation matrix that is not a "true" correlation matrix...
  5. spunky

    Warning "The estimated weights for the factor scores are probably incorrect" in fa function (psych)

    Did you get any more warnings with this or was it the only one it gave you? Something about Heywood cases or loadings greater than 1?
  6. spunky

    Linear Regression Alternatives if DV Zero Bounded

    If the DV is continuous and strictly positive... maybe Gamma Regression? https://www.groups.ma.tum.de/fileadmin/w00ccg/statistics/czado/lec8.pdf
  7. spunky

    Rct efficicay for small sample

    Uhm... how do you know this?
  8. spunky

    Election 2020

    And now I'd like to unveil my latest piece... The Solution Multiplicity of the Fleishman Polynomials. Gib clap plz
  9. spunky

    Checking the adequacy of the sample size when the data set is qualitative

    I bet by "qualitative" data OP means categories. Like the famous Smoking VS non-Smoking and Cancer VS no-Cancer, 2x2 contingency table.
  10. spunky

    Checking the adequacy of the sample size when the data set is qualitative

    Sample size determination is related to the power of a statistical test. You need to decide what test to run first to decide on the sample size. For instance, even if it's not explicitly stated, the formula you present above is for proportions (the SD x (1-SD) gives it away).
  11. spunky

    Follow up tests after pearson chi square

    I always refer people to this article with covers some approaches on what to do after a significant chi-square test of association: https://scholarworks.umass.edu/pare/vol20/iss1/8/
  12. spunky

    Could an average US person with Covid more likely die from medical error than from Covid?

    This calculation assumes stochastic independence of two events which are CLEARLY not independent.
  13. spunky

    Sports data set

    You can't treat the same team as "different" teams because they're correlated and mess up your analyses. You'd need to do some type of longitudinal modelling line time series or mixed-effects models to account for the repeated instances over time.
  14. spunky

    Am I posting questions in the wrong place?

    Have you considered posting on cross-validated? https://stats.stackexchange.com/ Sometimes questions that aren't answered here get an answer there!
  15. spunky

    Looking For The Formula Used for the Chi Square Table

    Well... you need to use the quantile function or inverse CDF of the chi-square distribution for that and I don't think there are closed-form expressions for it because of the gamma functions involved.
  16. spunky

    HLM Simulation

    Let's do this step by step. We'll start with something simple and build towards a full HLM. First, you have a few important-yet-ambiguous statements that need more precise definitions. What does "general characteristics of the attachment", "predicts the burnout risk" and "higher the attachment...
  17. spunky

    Some questions to answers

    Perfect. That means my "help" had the intended effect.
  18. spunky

    Some questions to answers

    This seems very relevant to these questions Particularly to Question 10.