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Updated: Jun 24, 2026

A Two-interval Forced-choice Task for Multisensory Comparisons
Published on: November 9, 2018
Functions for traditional and multilevel approaches to signal detection theory
Daniel B Wright1, Ruth Horry, Elin M Skagerberg
1Florida International University, Miami, Florida 33265, USA. dwright@fiu.edu
Abstract:
In the present article, functions written in the freeware R are presented that calculate several measures from traditional signal detection theory for each individual in a sample, along with summary statistics for the sample. Bias-corrected and accelerated bootstrap confidence intervals are also produced. Arguments are made for using an alternative approach--multilevel generalized linear models--and a function is presented for it. These functions are part of the R package sdtalt, which is available on the Comprehensive R Archive Network. Recent data from memory recognition studies are used to illustrate these functions.
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