1) To save the data changed is very nice trick. Thank you .. the question is how to recall it again if I need it ? is it from file button?
2) I have very tiny background that SPSS deals only with numbers. the question is why we did not code every thing to numbers ( Like yes & No / Male & female) . I saw you left it as words?
3) How to practice these tasks ? I mean what do you recommend for the way of practice if I have some excel sheet data . or you thinks I can wait to done with the tests needed for analysis lecture and try it as totally?..
the question in another way, How to maximize my benefit from SPSS practice?
Dear Dr. Moustafa,
I’m happy that you get into it.
1. You can double click on the saved file directly, or if you have an open program you can use file -> open -> choose data ending by .sav which is the storage form
2. Data values are stored in number (numeric). It is a good option in SPSS that label the values as 1 = male and 2 = female.
I demonstrated in the lecture that you can switch the display between the 2 formats. I personally prefer to keep it as labels as this will diminsh the chance of doing mistakes if you entered numbers.
3. The best way is to have a real data and try to do this on your own. Try to be involved in any research at your location.
In Exercise: Q13 about consanguinity off_spring .. I answered ( Insignificant ).as the odds risk 3.52 ( above 1 ) and the least value was 0.1 that is beyond 1.
But when I double check the answers I found it is answered as (significant)… Was I wrong ?
Need clarification please sir!
Dr. Moustafa
You are absolutely right. The relative risk is 3.52 and the lower limit of the confidence interval is 0.1 i.e. Less than one. So, the correct answer is insignificant. I do congratulate you for your alertness. I will ask the IT team for correction. Please accept our apology.
Dear Dr Shokier
Thanks you for this concise, informative, summary kind of lecture . It make me gather and revise all important infromation in less than 30 min.
hi in Week 5 Exercises, Determine whether the P value is significant or insignificant for the following variables in table 4:Outcome of glomerulonephritis in live-donor renal transplant recipients: A single-centre experiencethe question no 6-6- Donor age, years 31-40 ?the model ans is insignificant while my answer is significant as The P value for the variable “Donor age, years” in the 31-40 age group is significant (P=0.035), which suggests that there is a statistically significant association between this age group and the risk of developing post-transplantation glomerulonephritis (PTGN). However, there is no “Donor age, years 31-40” cell in the table, so it is unclear what the corresponding regression estimate and relative risk values would be for this category.
Dr. Mohammed Amin
The cell referring to the item donor age between 31-40 is existing in the table . Please see side title #3, subtitle #2.
Regarding the issue of significance, you are absolutely right. The relative risk is 1.76 i.e. more than one and the lower limit of the confidence interval is 1.04 i.e. more than one so the correct answer must be significant . The answer in the system is wrong. I will ask the IT team to correct it.
I congratulate you for your alertness. Please accept our apology.
Dr. Amr
The issue of meta-analysis is not the target of this lecture. It will be a big subject in module #2 of this course. The diagram was presented to show how to interpret and know statistical significance of the odds ratio from just looking at the upper and lower limits of the confidence interval.
Thank you for being an active member in the section of discussion of this module.
I have some questions to Dr Harraz, Please
1) To save the data changed is very nice trick. Thank you .. the question is how to recall it again if I need it ? is it from file button?
2) I have very tiny background that SPSS deals only with numbers. the question is why we did not code every thing to numbers ( Like yes & No / Male & female) . I saw you left it as words?
3) How to practice these tasks ? I mean what do you recommend for the way of practice if I have some excel sheet data . or you thinks I can wait to done with the tests needed for analysis lecture and try it as totally?..
the question in another way, How to maximize my benefit from SPSS practice?
Thank you
Dear Dr. Moustafa,
I’m happy that you get into it.
1. You can double click on the saved file directly, or if you have an open program you can use file -> open -> choose data ending by .sav which is the storage form
2. Data values are stored in number (numeric). It is a good option in SPSS that label the values as 1 = male and 2 = female.
I demonstrated in the lecture that you can switch the display between the 2 formats. I personally prefer to keep it as labels as this will diminsh the chance of doing mistakes if you entered numbers.
3. The best way is to have a real data and try to do this on your own. Try to be involved in any research at your location.
Dear Dr Harraz
Thanks for this very illustrative and informative lecutre.
Appreciate it.
My question to Dr Shokier.
In Exercise: Q13 about consanguinity off_spring .. I answered ( Insignificant ).as the odds risk 3.52 ( above 1 ) and the least value was 0.1 that is beyond 1.
But when I double check the answers I found it is answered as (significant)… Was I wrong ?
Need clarification please sir!
Dr. Moustafa
You are absolutely right. The relative risk is 3.52 and the lower limit of the confidence interval is 0.1 i.e. Less than one. So, the correct answer is insignificant. I do congratulate you for your alertness. I will ask the IT team for correction. Please accept our apology.
The mistake was corrected.
Thanks sir for the follow up
Thanks Prof Dr Shokier
Please you do not need to apologize sir.
WE appreciate your mentorship.
Dr. Moustafa
Thank you very much.
Dear Dr Shokier
Thanks you for this concise, informative, summary kind of lecture . It make me gather and revise all important infromation in less than 30 min.
Thanks again
Dr. Moustafa
Thank you very much for the nice words and complements.
hi
in Week 5 Exercises, Determine whether the P value is significant or insignificant for the following variables in table 4: Outcome of glomerulonephritis in live-donor renal transplant recipients: A single-centre experiencethe question no 6-6- Donor age, years 31-40 ?the model ans is insignificant while my answer is significant as The P value for the variable “Donor age, years” in the 31-40 age group is significant (P=0.035), which suggests that there is a statistically significant association between this age group and the risk of developing post-transplantation glomerulonephritis (PTGN).
However, there is no “Donor age, years 31-40” cell in the table, so it is unclear what the corresponding regression estimate and relative risk values would be for this category.
Dr. Mohammed Amin
The cell referring to the item donor age between 31-40 is existing in the table . Please see side title #3, subtitle #2.
Regarding the issue of significance, you are absolutely right. The relative risk is 1.76 i.e. more than one and the lower limit of the confidence interval is 1.04 i.e. more than one so the correct answer must be significant . The answer in the system is wrong. I will ask the IT team to correct it.
I congratulate you for your alertness. Please accept our apology.
Thank you doctor
You are most welcome.
The mistake was corrected.
Dear Prof. Dr. Shokeir,
You mentioned in a meta-analysis study (including 4 studies, 3 of it are significant and 1 is non-significant)
My question is, is it possible that 1 non-significant study dominates 3 significant studies and shifts the results towards that 1 study?
My apologies for my non-scientific term (dominates) as I don’t know the exact used term in medical research terminology
Dr. Amr
The issue of meta-analysis is not the target of this lecture. It will be a big subject in module #2 of this course. The diagram was presented to show how to interpret and know statistical significance of the odds ratio from just looking at the upper and lower limits of the confidence interval.
Thank you for being an active member in the section of discussion of this module.
Thank you doctor for this useful lecture
Dr. Ola
Thank you very much for the nice words and complement.
Hi colleagues,
I’m waiting to hear your feedback and if there are any problems in applying what I showed today.
Dear Participants
I am happy to receive your questions, comments and impressions.
Please go in and share in the discussion.