Visual estimates of blood loss by medical laypeople: Baseline data

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Creator/Principal investigator(s)

Erik Prytz - Linköping University orcid

Description

The data material was collected in a controlled experiment that investigated the ability of laypeople to visually assess blood loss and to examine factors that may impact accuracy and the classification of injury severity. A total of 125 laypeople watched 78 short videos each of individuals experiencing a hemorrhage. Victim gender, volume of blood lost, and camera perspective were systematically manipulated in the videos.

Subject area

Other Clinical Medicine, Applied Psychology (The Swedish standard of fields of research 2011)

Keywords

applied psychology, perception, first aid

Principal organisation

Linköping University

Accessibility status

Access to data through SND
Data are accessible by order

Responsible department/unit

Linköping University, Department of Computer and Information Science

Creator/Principal investigator(s)

Erik Prytz - Linköping University orcid

Contributor(s)

Mattias Lantz Cronqvist - Linköping University, Department of Computer and Information Science

Rachel Phillips - Old Dominion University, Department of Psychology

Marc Friberg - Linköping University, Center for Disaster Medicine and Traumatology

Carl-Oscar Jonson - Linköping University, Center for Disaster Medicine and Traumatology, and Department of Biomedical and Clinical Sciences

Identifiers

SND-ID: 2020-42

Description

The data material was collected in a controlled experiment that investigated the ability of laypeople to visually assess blood loss and to examine factors that may impact accuracy and the classification of injury severity. A total of 125 laypeople watched 78 short videos each of individuals experiencing a hemorrhage. Victim gender, volume of blood lost, and camera perspective were systematically manipulated in the videos.

Language

English

Time period(s) investigated

2019-08-01 — 2019-12-31

Unit of analysis

Population

Medical laypeople (undergraduate students at an american university)

Time Method

Sampling procedure

Probability

Funding

Swedish Civil Contingencies Agency

Subject area

Other Clinical Medicine, Applied Psychology (The Swedish standard of fields of research 2011)

Keywords

applied psychology, perception, first aid

Associated documentation

Read-me-document 2020-42.txt

Download metadata

Version 1

2020-10-06
https://doi.org/10.5878/jm2q-xq68

Visual estimates of blood loss by medical laypeople: Baseline data

Suggested citation

Erik Prytz. Linköping University, Department of Computer and Information Science (2020). <em>Visual estimates of blood loss by medical laypeople: Baseline data</em>. Swedish National Data Service. Version 1. <a href="https://doi.org/10.5878/jm2q-xq68">https://doi.org/10.5878/jm2q-xq68</a>

Creator/Principal investigator(s)

Erik Prytz - Linköping University orcid

Description

The data set consists of four variables: volume estimate, volume error, response time, and classification.

Each variable has a separate sheet in the excel document.

The data is from 125 individuals, each listed on a separate row with a unique ID for each individual.
Each sheet includes the participant ID (anonymous number), age in years, participant sex (0 = male, 1 = female), perspective of the video clip (0 = top view, 1 = front view), and then one column for each victim gender and loss volu

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Keywords

applied psychology, perception, first aid

Data format / data structure

Numeric

Data collection

Mode of collection: Laboratory experiment

Time period(s) for data collection: 2019-08-01 — 2019-12-31

Source of the data: Forskningsdata: Opublicerade

Variables

100

Number of individuals/objects

125

Published: 2020-10-06
Last updated: 2020-10-07