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It is generally recommended that baseline should not be kept as predictor if change score (final - baseline) is the outcome variable. However, there are many instances in biomedical research...
Asked on 11/21/2021
0 answerThe regression model is:y = b0 +b1x1 + b2x2 + b3x3 + eI want to test if b1 + b2 > 0. the R package car has a function...
Asked on 11/21/2021
3 answerPearsons corelation coefficient is defined as follows $$ r_{x,y} =frac {sum (x_i -bar X)(y_i - bar Y)}{sqrt{sum(x_i-bar X)^2} sqrt{sum(y_i-bar Y)^2}} $$. Now, maximum magnitude of a correlation coefficient...
Asked on 11/21/2021
0 answerI want to develop a model for cropping the equations from the Maths questions as people like me are struggling a lot for doing it manually for the research purpose....
Asked on 11/21/2021
1 answerI'm currently studying Vapnik's theory of statistical learning. I rely on Vapnik (1995) and some secondary literature that is more accessible to me. Vapnik defines a learning...
Asked on 11/21/2021
1 answerI conduct a staggered difference-in-differences analysis across multiple groups i and multiple time periods t. Therefore, I fitted a fixed-effects model using the following equation:$$Y_{it}=beta_{o}Treatment_{it} + alpha_{i}...
Asked on 11/21/2021 by cian
0 answerI try to replicate some findings from a paper (page 11/12 of https://www.newyorkfed.org/medialibrary/media/research/staff_reports/sr914.pdf). In this paper they estimated some quantiles using quantile regressions. I did this step,...
Asked on 11/21/2021 by JJ_okocha
0 answerIn psychometrics,we often want to know, for instance,a given participants' perceptual threshold:the intensity of a stimulus that they can detect 50% of the time. It's common to...
Asked on 11/21/2021
0 answerI've seen very similar questions but none really address my issue. I ran a PCA on 29 items to identify different factors of stress and worry. All items were on...
Asked on 11/21/2021 by Giulia Magnani
1 answerI am posting this question here after being advised to do so on StackOverflow.I am trying to use the rma.uni function from the metafor package to estimate the impact...
Asked on 11/21/2021 by Ena
1 answerGet help from others!
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