Mahmoud Elmaghraby

3 Questions 6 Answers 0 Followers

Questions related from Mahmoud Elmaghraby

Can Gamma regression be used to analyze left skewed data?

My response variable is a count (1, 2, 3 ... etc.) with right skewness, and actually we use the inverse of the count (1/count). So a count of 1 gives 1, 2 gives 0.5, 4 gives 0.25 and so on. The...

27 July 2021 9,120 1 View

How to include mean and median survival time in the output of a multivariate Cox proportional hazard analysis in SPSS?

My model has 7 covariates. Therefore, a hazard ratio for one covariate is adjusted for other covariates in the model. The mean and median values given with Kaplan Meier (KM) curves are for...

17 July 2021 6,042 5 View

How to adjust P value for multiple comparison using Bonferroni correction?

I have data that is classified into 3 times (1-3) in each of 4 weeks (1-4) in a repeated measures design (5 subjects). (Total 3 times x 4 weeks = 12 mean values throughout the experiment) I want...

05 September 2018 9,723 4 View