READ ME file supporting the dataset supporting ?An extension of the Human Factors Intervention Matrix (HFIX) to include second-order interactions?.
General information:
> Title: Data supporting ?An extension of the Human Factors Intervention Matrix (HFIX) to include second-order interactions?
> Date and location of data collection: May 2024, remote
> Keywords: accident investigation; safety management; safety recommendations; human factors; HFACS; HFIX 
> Name/institution/contact information:
o Person collecting data: Wesley Tsz-Kin Chan, PhD candidate, Faculty of Engineering and Applied Science
o Supervisor: Wen-Chin Li, Senior Lecturer, Faculty of engineering and Applied Science
> Funding: No external funding
Methodological information: 
> The data collection form was developed using 14 HFACS latent conditions and five HFIX intervention approaches. A total of three DEMATEL matrices (L2 - L1; L3 - L1; and L4 - L1) were included in the form, with latent conditions at HFACS levels 2, 3, and 4 set across three respective matrices against the five active failure categories (DE, SBE, PE, RV, EV) at HFACS level 1.
> Six subject matter experts including one state-level chief investigator of accidents, two academics in air safety management and accident investigation, one regulatory safety management expert, one active airline pilot involved in flight and cabin crew safety training development, and one airline pilot involved in industrial and organisational psychology, were recruited by convenience sampling.
Sharing and access information: 
> Licenses: CC BY-NC-ND 4.0
> Citation:
Chan, Wesley; Li, Wen-Chin (2024). Data supporting: ?An extension of the Human Factors Intervention Matrix (HFIX) to include second-order interactions?. Cranfield Online Research Data (CORD). Dataset. https://doi.org/10.57996/cran.ceres-2681
File name structure and file format
> Filename: Data supporting ?An extension of the Human Factors Intervention Matrix (HFIX) to include second-order interactions?.xlsx
> Structure: N=6 subject matter experts in aviation safety and accident investigation completed the DEMATEL exercise (in .csv files: 'Participant 1? ? ?Participant 6'), with latent conditions at HFACS levels 2, 3, and 4 set across three respective matrices against the five active HFACS level failure categories. DEMATEL analysis was performed following the standard procedure (Fontela and Gabus, 1972), with the six sets of results averaged (output in .csv file: 'Average Matrix'), and interactive analysis carried out for the matrices linking HFACS 'Level 4 to 1', '3 to 1', and '2 to 1' (on respective sheets).
> File formats: .xlsx
Data-specific information for [each file]
1. Variable list:
1-1
Skill-Based Errors
1-2
Decision Errors
1-3
Perceptual Errors
1-4
Routine Violations
1-5
Exceptional Violations
2-1
Physical Environment
2-2
Technological Environment
2-3
Adverse Mental States
2-4
Adverse Physiological States
2-5
Mental/ Physical Limitations
2-6
Crew Resource Management
2-7
Personal Readiness
3-1
Inadequate Supervision
3-2
Planned Inappropriate Operations
3-3
Failed to Correct Known Problem
3-4
Supervisory Violations
4-1
Resource Management
4-2
Organisational Climate
4-3
Organisational Process
2. Units of measurement: Likert scale: 1 (little influence) to 4 (strong influence)