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IIP-C-IRT

In this post, I provide a paper version of the Inventory of Interpersonal Problems–Circumplex Item Response Theory (IIP-C-IRT) assessment measure. This measure is a brief (32-item) version of the Inventory of Interpersonal Problems with circumplex scales that was developed by Sodano & Tracey (2011) . While similar to the related IIP-32 and IIP-SC measures, the …

Tutorial on “Statistical Methods for Affective Computing”

I had a great time presenting on “Statistical Methods for Affective Computing” at the IEEE International Conference on Automatic Face & Gesture Recognition. Resources are available for download from: https://goo.gl/VbjHGo Topics include inter-rater and predictive reliability (agreement indexes for categorical data and correlation indexes for dimensional data), estimation of population parameters (effect size measures and …

Audiovisual Recording from MATLAB

I have been developing a graphical user interface (GUI) in MATLAB to present experimental stimuli to participants and record their responses in a variety of formats. MATLAB makes it pretty easy to collect self-report data using the uicontrol function, which can be configured as an edit box, drop-down box, check box, list box, button, or …

Gabor Visualization

Gabor filters are often used for edge detection in computer vision tasks such as optical character recognition and facial expression recognition. In this blog post, I will demonstrate and provide source code for visualizing the “Gabor Space” using MATLAB. Given my research focus on faces, I will use facial images and video in my examples. …