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شرح ممتاز ووافي بارك الله فيك

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!!!

Poor teaching methodologies

Excellent SPSS presentation and very useful data-cleaning process.

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

Thank you for this video Doctor. I would like to ask how to add extra decimal place (e.g to make it 3 dp) for the values of the ES and CI?

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!

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My skewness variabel Y is negative but can be normal with LOG10(x) is it allowed? Or must be outlier?

Sir could you please explain how to do absolute principle component score - multiple linear regression (APCS MLR) modelling in SPSS.

Thanks so much for the video, but I have a question and is how do we perform the Egger's test?

The relationship between X and Y is assumed to be linear so the Xi^2 is not linear ma'am

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?

Really useful, thank you Dr

exactly what i need thanks..

Highly recommend and more didacticial. Thanks Dear Professor

Good Teacher Dr. M. Omar

Thank you Prof. suppose we have 3 main variables (independent variable), (dependent Variable) and (Mediating variable). each variable is measured by some already established and validated scale. and each scale has about 4 Dimensions with about 3 statements for each dimension. and all items were scored on a 7-point Likert scale 1=Strongly Disagree to 7=Strongly Agree. How would be the correct analysis process for each dimension and each scale? and how would be the correlation analysis between the 3 variables? and for the total scores of dimensions/scales, should we use averages (means) or sums and why?. thank you very much in advanced for your kind clarification.

Very helpful for beginners. Thank you

Why is the “SE of mean diff” the same for all the groups? Should we report that?

it says object name not found for three way anova. please give me solution

Love you sir .. extremely grateful

Could I use RevMan to generate a single groups forest plot? I have been trying it but couldn't do it. Thanks from Brazil!!

Thank you so much for the information

you can not make a 43 minutes video !! contents are ok but ....

Very informative tutorial!

Sir, Can you tell me how to known that we should replace missing value with "Mean" or "Medianor Mode" in Excel?

This is the best I have seen on binary meta-analysis. Thank you so much!

its supposed to be informed the minimum people is 371 hundred, i measured and wrong bcs i dunno how minimum the sample is:((

السلام عليك دكتور محمود، أسأل الله ان يجعل هذا العمل في ميزان حسناتكم و يعينكم على دوام الاستمرار في هذا البث..والله لقد استفدنا الكثير مما جعلنا من محبي القناة و كذلك ان جعلتم هذه المادة الصعبة نوعا ما ذليلة في اوساط الاخصئيين في ميادين الطب و الصيدلانية و البيولوجيا و علوم الزراعة. مرة اخرى الشكر و التبجيل لك. اطال الله في عمركم و بارك فيكم.

Thank you very much but I still have a question, I have a questionnaire with items that already grouped by latent variables or constructs. can I apply the PCA to refine my questionnaire items and also verify if my items load together for each variable? please could you explain me what I have to do and if you have a video about this. thank you again

YOU ARE THE BEST MISTER MAHMOUD

نريد ترجمة بالعربي

may i ask question? what can we do if the graph is looking bad i mean it sfine before but after i added one variable it get overlapping and doesnt show real data?

Thank you, Dr.

Thank you for this information. How do we label the factors?

How do we determine the name of a factor? Is it calculated by some method?

thank you Doctor Mahmoud

hello Dr. Mo thank you for your video. I am conducting survival analysis over a 10-year follow-up period. However, I have encountered difficulties with the proportional hazards assumption, as my main variable of interest violates this assumption (the hazard ration is not consistent) how can I solve this issue e, please.

very useful thank you

thanks a lot sir

Very clear.thank you so much

Thank you so much. Very useful

Hello ! I have prepared 31 questions (including demographics) Almost all these questions have the answers as True/False/Don't Know. I need to test the reliability of prepared questions. Gone through suggestions at different sites, but I couldn't get what exactly I should do. Can I apply Cronbach alpha test for the said type of questionnaire? (Currently, I am preparing for Graduate Research Project of my MBA) Hope I will get some good suggestion and ways ahead. Thank You.

how do you change all values at once

Thank you

thank you

Sir .what test can be used for not normally distributed data of large size ?