- Title
- Dispatch information affects diagnosis in paramedics: an experimental study of applied dual-process theory
- Creator
- Keene, Toby; Pammer, Kristen; Lord, Bill; Shipp, Carol
- Relation
- International Journal of Emergency Services Vol. 11, Issue 2, p. 277-291
- Publisher Link
- http://dx.doi.org/10.1108/IJES-06-2021-0039
- Publisher
- Emerald
- Resource Type
- journal article
- Date
- 2022
- Description
- Purpose: Previous research has shown that paramedics form intuitive impressions based on limited “pre-arrival” dispatch information and this subsequently affects their diagnosis. However, this observation has never been experimentally studied. Design/methodology/approach: This was an experimental study of 83 Australian undergraduate paramedics and 65 Australian paramedics with median 14 years' experience (Range: 1–32 years). Participants responded to written vignettes in two parts that aimed to induce an intuitive impression by placing participants under time pressure and with a secondary task, followed by a diagnosis made without distraction or time pressure. The vignettes varied the likelihood of Acute Coronary Syndrome (ACS) and measured self-reports of typicality and confidence. Answer fluency, which is the ease with which the answer comes to mind, was also measured. Findings: More participants exposed to the likely pre-arrival vignette recorded a final diagnosis of ACS, than those exposed to unlikely pre-arrival information (0.85 [95%CI: 0.78, 0.90] vs 0.74 [95%CI: 0.66, 0.81]; p = 0.03). This effect was greater in paramedics with more than 14 years' experience (0.94 [95%CI: 0.78, 0.99] vs 0.67 [95%CI: 0.48, 0.81]; p = 0.01). Answer fluency and confidence were associated with the impression, while the impression and confidence were associated with final diagnosis. Practical implications: The authors have experimentally shown that pre-arrival information can affect subsequent diagnosis. The most experienced paramedics were more likely to be affected. Originality/value: This is the first experimental study of diagnostic decision-making in paramedics and paramedic students.
- Subject
- paramedic; emergency medical services; decision making; diagnosis; dual process theory
- Identifier
- http://hdl.handle.net/1959.13/1473896
- Identifier
- uon:49146
- Identifier
- ISSN:2047-0894
- Language
- eng
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