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.

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)

Sampling procedure:

Probability

Funding:

Swedish Civil Contingencies Agency

Available documentation:

Download metadata:

Version 1:

Visual estimates of blood loss by medical laypeople: Baseline data

Suggested citation:

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

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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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