Travels

Back from the VI EAM conference

I’m back from the VI European Congress of Methodology that was helded in Utrecht this week. All abstracts are available as PDF. I shall return to specific sessions later in August.

This is the third time I attend this conference, and Utrecht really is a great place. Here are some photos I took.

Notes on the ISOQOL 2012 conference

Here some are notes I took during the 19th annual conference of the International Society for Quality of Life Research which was held in Budapest, Hungary. On the use of mixed methods to assess content validity of patient reported outcomes Mixed methods consist in an iterative, cyclical, and hypothesis-driven decision approach that alternate between qualitative and quantitative methods. With application in prospective, observational data, or in-trial evaluation. Now becoming a recommended step by FDA for developing PRO measures before psychometric validation of a new instrument.

Bergen

Some photos from Norvegian fjords after a nice trip to Bergen.

Beside the 33rd annual conference of the International Society for Clinical Biostatistics, I spent much time visiting this very nice city and its surroundings (with my family).

Notes on the ECM 2012 Conference

I’m just returning from the ECM 2012 conference that was held in Santiago de Compostela. As was the case for to the preceding one, and in contrast to the annual conference from the Psychometric Society, this conference is generally more heavily oriented toward psychological applications, and less place is devoted to psychometric ‘hard’ methods, except for Friday’s morning sessions. There was a workshop on applied IRT modeling with R, but I completely missed it.

Back from the BoRdeaux conference

Here is a quick wrap up of the BoRdeaux conference. I won’t detail the conference program itself, but just drop some words on packages that were presented together with their applications (in various fields: epidemiology, social sciences, teaching, high dimensional data, chemometrics). Multivariate data analysis Stéphanie Bougeard talked about two new functions in the ade4 package aiming at the analysis of K+1 tables (several blocks of explanatory variables and a block of response variables).

The 6th CARME conference

Just a few words about the 6th CARME conference, on Correspondence Analysis and Related Methods. I only attended a few sessions, but it was a great opportunity to see what’s actually going on with data analysis of tabular data. The conference was held on the Agrocampus in Rennes. I went in the same place two years ago for the UseR! 2009 conference (I found it too crowdy, but anyway there was really great stuff presented here).

The 17th annual ISOQOL conference

Back from the 17th annual ISOQOL conference, in London, where I had the occasion to present my ongoing work on the detection of DIF on an health-related quality of life questionnaire. The slides are available. The advantages of ISOQOL over ISPOR conferences are that: (a) they tend to focus more on patients reported outcomes studies than cost-effectiveness studies, and (b) the pharmaceutical sponsoring/lobbying is far less glaring. I didn’t attend any workshop at ISPOR this year, but I did go to a four-hour workshop on IRT modelling during ISOQOL.

Summary for the 31th ISBC conference

Some notes I took during the 31th ISBC conference. I only attended the first two days, with sessions mostly oriented toward genetic epidemiology. An extra session around latent variable modeling was also present. This gives me the opportunity to summarize two aspects of statistical modeling that I actually like a lot, namely biometrics and psychometrics. The sequential rejection principle of familywise error control (A. Solari) In the context of GWAS, where we usually work with 500,000 SNPs or more, and where each SNP represents one hypothesis to test, the nominal p-value would have to be set to 1e-7.

Edinburgh

Here are some photos from Edinburgh. A very nice place to live in…

Back from the IV EAM conference

Back from the IV EAM conference that was held in Postdam, near Berlin. The next one is planned in two years in Spain. In the mean time, I expect great publications coming up from some of the presenters. There was a lot of interesting talks although five parallel sessions inevitably led to tedious alternative forced choice decisions (unless one’s willing to run from one room to another in less than 2 minutes, but this is not my case).