Step by step description and explanation of how to analyse data in SPSS, Excel, Jamovi, GraphPad Prism, R statistic, Review Manager, G*power, JMP, Python, UNIX and STATA software.
1. 2:16 Subgroup analysis can only be performed for dichotomous outcomes 2. 13:38 code for subgroup meta-analysis 3. 18:23 generating Forrest plot, 21:50 Forrest plots with study IDs
How would I calculate the SD values if the studies of my systematic review don't tell me the SD, they only show the Mean values. Thank you very much for the video!
Hello. Thank you for this explamation. Is there a way to assign the classic letters (e.g., A, AB, B, C) to differentiate the groups after the post hoc? It would be very useful...
Many thanks Dr. Omar for your straightforward discussion. I really enjoyed your tutorial and benefited a lot despite being professor doing stat for years,
Good morning doctor Mahmoud Please, can you make a video on: How to read, interpret and write the results (output tables) of non-linear regression in SPSS? Thank you Best wishes Doctor Sameer
Dr. Omar, you're a father figure to me. You made it so easy that even my 6 year old nephew is now running meta-analysis. Thank you so much. You deserve the best
Dear sir, For determining the effect size, can the correlation coefficient be from a previous interim analysis which is done for the same variables? Is the squared multiple correlation (rho squared) the same rho which is obtained by the correlation analysis? Thank you.
Hello Sir, can you please make a video on 2 way ANOVA on parametric data having multivariate like 3×4 independent variable and 6 dependant variables like, body weight heighg, length, kideny weight, liver weight..
Very useful and beneficial presentation. If a question has many choices which have to be ranked inorder of preference, in the variable view what do we assign for the type and measure of that question?
Dr. Mahmoud, I followed your video. I have 2 independent variables (include the concentration and pretreatment) and 1 dependent variable (scores) However, when using the non parametric test in the SPSS software, I cannot select the concentration and pretreatment into the grouping variables, I can only choose the scores into the testing variable. I have tried many times but still does not work, What can I do for this situation? Tank you very much!!!
Your videos are very helpful sir...i have one doubt sir....how to incorporate 3x2x2 factorial RBD and 5 checks(controls) in one tabel sir...can it possible sir...please reply sir
Hello teacher, thank you for the information. However, according to the example data entry will favor the experimental group ins't? But why in the forest plot it favors the control group? I have the same problem with my research. Thanks!
Thank you for explaining the result. I need to know..if I have multiple predictor should i include them all at time, like we do for binary logistic model fitting.. Or it's just one predictor at a time? How to model fit here with multiple predictor
Thank you so much. I have a question. As per the formula for I2 that you mentioned at the beginning of the video, if we insert the values of Q and df from the example at the end of the video, the I2 comes out as 18% or 0.18. However, in the example, it says I2=0.23. Can you pls explain?