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The Dangers of Speaking a Second Language: An Investigation of Lie Bias and Cognitive Load

Today's world is an interconnected global village. Communication and business transactions are increasingly conducted in non-native languages. Literature suggests that biases are present when communicating in non-native languages; that a truth bias is present in first language communication, and a l...

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Main Author: Dippenaar, Andre
Other Authors: Tredoux, Colin G
Format: Thesis
Language:English
Published: Department of Psychology 2021
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access_status_str Open Access
author Dippenaar, Andre
author2 Tredoux, Colin G
author_browse Dippenaar, Andre
Tredoux, Colin G
author_facet Tredoux, Colin G
Dippenaar, Andre
author_sort Dippenaar, Andre
collection Thesis
description Today's world is an interconnected global village. Communication and business transactions are increasingly conducted in non-native languages. Literature suggests that biases are present when communicating in non-native languages; that a truth bias is present in first language communication, and a lie bias in second language communication. Less than 10% of South Africa's population identifies with English, the lingua franca of the country, as a first language. Not much research in the presence of bias in second language communication has been published in the South African multi-lingual context. This study evaluated the presences of bias within deception frameworks such as the Truth Default State and the veracity effect. This study investigated whether deception detection can be improved by modifying the conditions under which statements are given by placing statement providers under cognitive load. The accuracy of veracity judgment language profiling software, LIWC2015, using published deception language profiles was compared against the results of the participating veracity judges. Results of the study were mixed. It was consistent with extant literature in a presence of a truth bias overall, but mixed in terms of a lie bias. The results supported the Truth Default Theory and veracity effect frameworks. LIWC2015 performed marginally better than human judges in evaluating veracity.
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institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:32:27.580Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2021
publishDateRange 2021
publishDateSort 2021
publisher Department of Psychology
publisherStr Department of Psychology
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source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/32623 The Dangers of Speaking a Second Language: An Investigation of Lie Bias and Cognitive Load Dippenaar, Andre Tredoux, Colin G Lie Bias Truth Bias Deception Detection Cognitive Load Veracity Assessment. Today's world is an interconnected global village. Communication and business transactions are increasingly conducted in non-native languages. Literature suggests that biases are present when communicating in non-native languages; that a truth bias is present in first language communication, and a lie bias in second language communication. Less than 10% of South Africa's population identifies with English, the lingua franca of the country, as a first language. Not much research in the presence of bias in second language communication has been published in the South African multi-lingual context. This study evaluated the presences of bias within deception frameworks such as the Truth Default State and the veracity effect. This study investigated whether deception detection can be improved by modifying the conditions under which statements are given by placing statement providers under cognitive load. The accuracy of veracity judgment language profiling software, LIWC2015, using published deception language profiles was compared against the results of the participating veracity judges. Results of the study were mixed. It was consistent with extant literature in a presence of a truth bias overall, but mixed in terms of a lie bias. The results supported the Truth Default Theory and veracity effect frameworks. LIWC2015 performed marginally better than human judges in evaluating veracity. 2021-01-21T11:17:30Z 2021-01-21T11:17:30Z 2020 2021-01-21T09:01:44Z Master Thesis Masters MSocSci http://hdl.handle.net/11427/32623 eng application/pdf Department of Psychology Faculty of Humanities
spellingShingle Lie Bias
Truth Bias
Deception Detection
Cognitive Load
Veracity Assessment.
Dippenaar, Andre
The Dangers of Speaking a Second Language: An Investigation of Lie Bias and Cognitive Load
thesis_degree_str Master's
title The Dangers of Speaking a Second Language: An Investigation of Lie Bias and Cognitive Load
title_full The Dangers of Speaking a Second Language: An Investigation of Lie Bias and Cognitive Load
title_fullStr The Dangers of Speaking a Second Language: An Investigation of Lie Bias and Cognitive Load
title_full_unstemmed The Dangers of Speaking a Second Language: An Investigation of Lie Bias and Cognitive Load
title_short The Dangers of Speaking a Second Language: An Investigation of Lie Bias and Cognitive Load
title_sort dangers of speaking a second language an investigation of lie bias and cognitive load
topic Lie Bias
Truth Bias
Deception Detection
Cognitive Load
Veracity Assessment.
url http://hdl.handle.net/11427/32623
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