Ahmed Waqas

9 Questions 6 Answers 0 Followers

Questions related from Ahmed Waqas

Is there any easy to understand resource for network meta-analysis using Stata?

Is there any easy to understand resource for network meta-analysis using Stata? I am looking for stata syntax for network meta-analysis.

20 July 2022 5,726 1 View

Is there any resource to develop web app for clinical prediction model developed in Stata?

I have developed a logistic regression based prognostic model in Stata. Is there any way to develop an app using this logistic regression equation (from Stata)? Most of the resources I found...

03 January 2022 7,273 3 View

Can we add a categorical predictor in multilevel modeling/linear mixed effects modeling in spss?

I am running multilevel modeling in SPSS for a dataset from a cluster randomized controlled trial. I know we can add continuous and dichotomous variables and check their association with dependent...

24 November 2020 8,816 3 View

Please list any travel funding sources for junior researchers?

Luckily I got 6 poster presentations accepted for Royal College of Psychiatrists (RCPsych) International Congress 2018 (IC2018) in Birmingham. But unfortunately, I cannot get travel funding from...

24 April 2018 4,487 5 View

Is it ethical to publish a compendium of one's research papers (open access) on a similar theme, in the form of a book?

I have written around 15 research papers on medical students' mental health in Pakistan. And I thought it to be a good idea to publish a compendium on them, in their actual form rather than...

07 March 2018 1,665 7 View

How important is it to translate a psychometric scale in native language before cross-culturally validating it?

I am from Pakistan, with an interest in medical student mental health. I am interested in studying validity and reliability of a few scales among Pakistani medical students. How important is it to...

30 March 2017 4,694 4 View

What is the criteria for entering variables in a regression model?

I have two scenarios, which would you prefer while analyzing your data? a) Is it all right to enter all predictors in your data set, into multiple regression/logistic regression analysis, that are...

26 March 2017 312 5 View

Log values were not symmetrical in comprehensive meta-analysis software? Any solution?

Dear colleagues, I have a question if you could please answer. During meta analysis using CMA software, I found out that a value of risk ratio and 95% CI was not converting to odds ration; log...

19 May 2016 2,372 5 View

How can I calculate minimum sample size required for validity of a psychometric scale with principal component analysis or principle axis factoring?

I know there are various rules of thumbs such as 5-20 cases per variable in a scale or recommendations like Comrey and Lee's. Also it depends on communalities. But is there any solid way to...

24 December 2015 9,026 4 View