Kamezi, Reza and Cousins, Rosanna and Smith, Andrew and Salesi, Mahmood and Alibeygian, Fateme and Zendehbodi, Hamid and Mokarami, Hamidreza (2023) Development and Validation of a Task Load Index for Process Control Room Operators (PCRO-TLX). Ergonomics. ISSN 0014-0139
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Abstract
Process control room operators (PCRO) perform a range of complex cognitive safety-critical tasks. The aim of this exploratory sequential mixed methods study was to develop an occupation specific tool to measure the task load of PCRO using NASA Task Load Index (TLX) methodology. Participants were 30 human factors experts and 146 PCRO at two refinery complexes in Iran. Dimensions were developed via a cognitive task analysis, a research review, and three expert panel. Six dimensions were identified: perceptual demand, performance, mental demand, time pressure, effort and stress. Data from 120 PCRO confirmed that the developed PCRO-TLX has acceptable psychometric properties, and a comparison with the NASA-TLX confirmed that perceptual, not physical, demand was relevant for measuring workload in PCRO. There was a positive convergence of scores of the Subjective Workload Assessment Technique and the PCRO-TLX. This reliable tool (α=0.83) is recommended for risk assessing the task load of PCRO.
| Item Type: | Article |
|---|---|
| Additional Information and Comments: | This is an Accepted Manuscript of an article published by Taylor & Francis in Ergonomics on 8th March, 2023, available online: https://www.tandfonline.com/doi/abs/10.1080/00140139.2023.2186322 |
| Keywords: | Process industries; human-computer interaction; control room; cognitive workload; information processing |
| Faculty / Department: | Faculty of Human and Digital Sciences > School of Psychology |
| Depositing User: | Rosanna Cousins |
| Date Deposited: | 19 Apr 2023 09:22 |
| Last Modified: | 08 Mar 2024 01:15 |
| URI: | https://hira.hope.ac.uk/id/eprint/3849 |
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