Data and R code of two papers

Below is link to the data file and R code used to in the final models in “Models for Story Consistency and Interestingness in Single-Player RPGs” (in Mindtrek 2013) and “Modeling Player-character engagement in Single-player character-driven games” (in ACE 2013 Netherlands).  The models q4 and q7 are used in the first paper and and the modelContinue reading “Data and R code of two papers”

Modeling Player-character Engagement in Single-player Character-driven Games

Petri Lankoski In ACE 2013 Netherlands, pp. 572-575.  Copyright Springer 2013. This is author’s version. The definitive version DOI: 10.1007/978-3-319-03161-3_56. Abstract This pilot study looks at how the formal features of character-driven games can be used to explain player-character engagement. Questionnaire data (N=206), formal game features (in 11 games), and ordinal regression were used in theContinue reading “Modeling Player-character Engagement in Single-player Character-driven Games”

R^2 for Generalized Mixed Models

Note for myself. Check this: Nakagawa, S. & Schielzeth, H., 2013, A general and simple method for obtaining R2 from generalized linear mixed-effects models.  Methods in Ecology and Evolution, 4: 2, pp 133–142, DOI: 10.1111/j.2041-210x.2012.00261.x EDIT 20131027: R implementation is available:  Also MuMIn package contains implementation (

Facial expressions of (some) emotions are inborn?

Couple of staring points for reading (beyond Paul Ekman’s publications): Peleg et al, 2006, Hereditary family signature of facial expression. PNAS, 103: 43. DOI: 10.1073/pnas.0607551103  Matsumoto &  Willingham, 2009, Spontaneous facial expressions of emotion of congenitally and noncongenitally blind individuals. Journal of Personality and Social Psychology, 96: 1. DOIi: 10.1037/a0014037    

Models for Story Consistency and Interestingness in Single-Player RPGs

Petri Lankoski Published in Academic MindTrek 2013 (c) Petri Lankoski 2013. This is the author’s version of the work. It is posted here for your own personal use. Not for redistribution. The definitive version was published in Academic MindTrek 2013. [LINK TO BE ADDED] ABSTRACT What are the elements that aect story interestingness or consistency inContinue reading “Models for Story Consistency and Interestingness in Single-Player RPGs”

My MindTrek2013 presentation on game story

My MindTrek 2013 presentation: The presentation relates to my paper Lankoski, 2013. Models for story consistency and interestingness in single-player rpgs. MindTrek 2013. The authors version is available on my blog: /2013/10/03/models-for-story-consistency-and-interestingness-in-single-player-rpgs/

Model–data comparison

I wrote some code to check my ordinal / clmm models against the data (and to learn to use ggplo2). The function pred() is from clmm tutorial to calculate predictions based on the model. The function plot.probabilities3() is for plotting prediction and distribution form the data. Update: changed extreme subject visualization.  Area seemed not appropriateContinue reading “Model–data comparison”

CFP: Game Research Methods

CALL FOR CHAPTER PROPOSALS During the last few years, several textbooks for game students have become available. While these cover many areas well, the objective of this book is to provide a collection of research methods for undergraduate and graduate level students. The aim of the book is to provide a comprehensive overview of thatContinue reading “CFP: Game Research Methods”