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Converging measures of workload capacity

journal contribution
posted on 2023-05-18, 08:09 authored by Eidels, A, Donkin, C, Brown, SD, Heathcote, A
Does processing more than one stimulus concurrently impede or facilitate performance relative to processing just one stimulus? This fundamental question about workload capacity was surprisingly difficult to address empirically until Townsend and Nozawa (1995) developed a set of nonparametric analyses called systems factorial technology. We develop an alternative parametric approach based on the linear ballistic accumulator decision model (Brown & Heathcote, 2008), which uses the model’s parameter estimates to measure processing capacity. We show that these two methods have complementary strengths, and that, in a data set where participants varied greatly in capacity, the two approaches provide converging evidence.

History

Publication title

Psychonomic Bulletin and Review

Volume

17

Issue

6

Pagination

763-771

ISSN

1069-9384

Department/School

Tasmanian School of Medicine

Publisher

Psychonomic Soc Inc

Place of publication

1710 Fortview Rd, Austin, USA, Tx, 78704

Rights statement

Copyright 2010 The Psychonomic Society

Repository Status

  • Restricted

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