Cédric Batailler

Cédric Batailler

Graduate student in Social Psychology


Univ. Grenoble Alpes, France

Evaluative process

People sometimes have specific behavioral responses to simuli in their environnement; these behabioral responses are called evaluative responses. During my PhD, I have been focusing on how people learn learn new evaluative responses. Specifically, I have been interested in the mental processes involved in evaluative response acquisition through approach and avoidance training.

Statistical modelling

I am also interested in advances in statistical modelling, aiming at two objectives: assessing the validity of the statistical methods we use in psychology and making robust methods more accessible.

In this context, I have been developping the JSmediation package, a package providing an easy to use interface to test statistical mediation with the joint-significance method in R (see Yzerbyt, Muller, Batailler, & Judd, 2018). Among other projects, I also contributed to an introduction to bayesian mixed-modelling (Nalborczyk, Batailler, Lœvenbruck, Vilain, & Bürkner, 2019).

Open science

Research practices have changed a lot in the past few years in psychology. I am interested in these changes, how to popularize them, and how to teach about the psychology credibility revolution (Vazire, 2018).


  • Social cognition
  • Evaluative response acquisition
  • Statistical modelling
  • Open science


  • MSc in Social Psychology, 2016

    Univ. Grenoble Apes, France

  • BSc in Psychology, 2014, 2014

    Université Pierre Mendès-France, France

Recent posts

Using R to map COVID-19 data in France

The french government has this website called data.gouv.fr with a lot of open access data, including data on how the COVID-19 crisis impacts the French healthcare system. Here, we can find a dataset with the number of people in intensive care units for every french department.



The JSmediation R package.

Teaching Pre-registration

Materials to teach about pre-registration with undergrad through replication (Pronin et al., 2002).