Rasmus Walter Green

8 Questions 24 Answers 0 Followers

Questions related from Rasmus Walter Green

How to calculate sample size for a biomarker discovery nested case-control study (approach by M. Pepe)?

Dear peers, I'm about to design a nested case-control study in which I will try to identify a biomarker (or biomarker panel) from protein expression levels (determined with mass...

17 August 2021 965 1 View

How do you perform Wilcoxon matched-pair sign-rank test in Stata using a grouping variable?

I'm performing a diagnostic method comparison study in which I have 2 groups; one assessed using the experimental method, and one assessed using the standard method. These groups are matched, with...

10 February 2019 2,922 5 View

What statistical test of association should I use with one dichotomous dependent variable and one continuous independent variable?

I'm doing a reliability study on a diagnostic procedure in detecting a type of cancer. I've had had 15 raters report how certain they are in their assessment, using a Visual Analogue Scale from...

04 January 2017 6,917 8 View

How can I re-run the same analysis, changing one variable at a time, in SPSS using syntax?

Hi! I'm doing interrater agreement analysis and want to do Cohens' kappa on all combinations of 14 raters. This is the equivalent of "if 14 guests at a party all shake hands, how many handshakes...

19 December 2016 1,645 4 View

How do I convert a numerical variable to a readable date format in SPSS?

Hi! I have a data set with date-of-births formatted as 19881031-3456, that is 31 Oct 1988 with a 4-digit personal code (a standard swedish personal number). SPSS reads this a a categorical...

17 October 2016 7,945 5 View

Is there any recommended software to visualise articles/papers/references when conducting a systematic review or meta-analysis?

I'm planning on conducting a systematic review and meta-analysis. For this I would like to visualise the relationship between different papers in how they cite each other (think of it like...

01 December 2015 3,148 23 View

Which prognostic factors have been identified for recurrence site in EC?

I'm looking for references on prognostic factors that predict recurrence site in endometrial carcinoma. Preferably review articles but all studies are welcome. I've found many studies on...

10 September 2014 2,944 3 View

Is there a Mac-compatible control software for the StepOne rt-PCR?

Applied Biosystems StepOne qPCR comes with its own software for template input and data output but this is only for PC. What Im looking for is a Mac-compatible alternative (Life Technologies...

19 March 2014 8,996 4 View