Experimental and meta-analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformation
Considerable evidence has shown that repeating the same misinformation increases its influence (i.e., repetition effects). However, very little research has examined whether having multiple witnesses present misinformation relative to one witness (i.e., source variability) increases the influence of...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-08-01
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| Series: | Frontiers in Psychology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fpsyg.2023.1201674/full |
| _version_ | 1827860554226597888 |
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| author | Rachel O’Donnell Jason C. K. Chan Jeffrey L. Foster Maryanne Garry |
| author_facet | Rachel O’Donnell Jason C. K. Chan Jeffrey L. Foster Maryanne Garry |
| author_sort | Rachel O’Donnell |
| collection | DOAJ |
| description | Considerable evidence has shown that repeating the same misinformation increases its influence (i.e., repetition effects). However, very little research has examined whether having multiple witnesses present misinformation relative to one witness (i.e., source variability) increases the influence of misinformation. In two experiments, we orthogonally manipulated repetition and source variability. Experiment 1 used written interview transcripts to deliver misinformation and showed that repetition increased eyewitness suggestibility, but source variability did not. In Experiment 2, we increased source saliency by delivering the misinformation to participants via videos instead of written interviews, such that each witness was visibly and audibly distinct. Despite this stronger manipulation, there was no effect of source variability in Experiment 2. In addition, we reported a meta-analysis (k = 19) for the repeated misinformation effect and a small-scale meta-analysis (k = 8) for the source variability effect. Results from these meta-analyses were consistent with the results of our individual experiments. Altogether, our results suggest that participants respond based on retrieval fluency rather than source-specifying information. |
| first_indexed | 2024-03-12T13:25:40Z |
| format | Article |
| id | doaj.art-b44a5611024843dcb7a6674fb6f542df |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-03-12T13:25:40Z |
| publishDate | 2023-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-b44a5611024843dcb7a6674fb6f542df2023-08-25T08:11:29ZengFrontiers Media S.A.Frontiers in Psychology1664-10782023-08-011410.3389/fpsyg.2023.12016741201674Experimental and meta-analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformationRachel O’Donnell0Jason C. K. Chan1Jeffrey L. Foster2Maryanne Garry3Memory, Law, and Education Laboratory, Psychology Department, Iowa State University, Ames, IA, United StatesMemory, Law, and Education Laboratory, Psychology Department, Iowa State University, Ames, IA, United StatesDepartment of Security Studies and Criminology, Macquarie University, Sydney, NSW, AustraliaSchool of Psychology, The University of Waikato, Hamilton, New ZealandConsiderable evidence has shown that repeating the same misinformation increases its influence (i.e., repetition effects). However, very little research has examined whether having multiple witnesses present misinformation relative to one witness (i.e., source variability) increases the influence of misinformation. In two experiments, we orthogonally manipulated repetition and source variability. Experiment 1 used written interview transcripts to deliver misinformation and showed that repetition increased eyewitness suggestibility, but source variability did not. In Experiment 2, we increased source saliency by delivering the misinformation to participants via videos instead of written interviews, such that each witness was visibly and audibly distinct. Despite this stronger manipulation, there was no effect of source variability in Experiment 2. In addition, we reported a meta-analysis (k = 19) for the repeated misinformation effect and a small-scale meta-analysis (k = 8) for the source variability effect. Results from these meta-analyses were consistent with the results of our individual experiments. Altogether, our results suggest that participants respond based on retrieval fluency rather than source-specifying information.https://www.frontiersin.org/articles/10.3389/fpsyg.2023.1201674/fulleyewitness memorymisinformationrepetitionsource variabilityeyewitness suggestibilitymisinformation effect |
| spellingShingle | Rachel O’Donnell Jason C. K. Chan Jeffrey L. Foster Maryanne Garry Experimental and meta-analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformation Frontiers in Psychology eyewitness memory misinformation repetition source variability eyewitness suggestibility misinformation effect |
| title | Experimental and meta-analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformation |
| title_full | Experimental and meta-analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformation |
| title_fullStr | Experimental and meta-analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformation |
| title_full_unstemmed | Experimental and meta-analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformation |
| title_short | Experimental and meta-analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformation |
| title_sort | experimental and meta analytic evidence that source variability of misinformation does not increase eyewitness suggestibility independently of repetition of misinformation |
| topic | eyewitness memory misinformation repetition source variability eyewitness suggestibility misinformation effect |
| url | https://www.frontiersin.org/articles/10.3389/fpsyg.2023.1201674/full |
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